Breakups are always unexpected for me, too. I'll think things are going well or getting better, then they don't want to be with me anymore.
They say time heals all wounds, but sometimes it takes a LOT of time...

look for tasks to do which allow you to think about only them (reading, playing a musical instrument, dancing, singing, coloring, video games, talking to someone about anything other than your current woes, laugh, make plans for something you've always wanted to do). These tasks help you get by until you've healed a bit further. These are just short term activities to give you a break from getting lost in your thoughts

I'm sorry you are going through this...you are not alone. I know exactly how you're feeling as I've been feeling like this for the past 4+ months now. It's been incredibly rough and painful. Every morning I wake up feeling hopeless and empty. I miss him so much yet there is nothing I can do to bring him back. But despite my rough journey so far, I can assure you that you will have good and bad days, and with time things will gradually get better (although at times it may feel like there's no light at the end of the tunnel). And there will be ups and downs as well as regression for sure. Take it one day at a time. I've been coping by trying to keep myself busy and productive, and focusing on other people and things that are important to you. Also try to be mindful with everything you are doing. Say if you are walking in the park, focus your attention on each step that you take and maybe the sound of birds chirping around you. Be mindful. It's virtually impossible to feel pain when you are focused solely on the present moment. It will take a bit a practice but you will get better at it. It will help. Have faith that things will get easier. Take care of yourself.

Try to relax. I went out to buy aromatherapy and is putting it on now. It helps me to breathe slowly and sleep abit better.

My girlfriend left me after two years a month ago. I understand all the questions and replaying of the relationship you must be going through right now. I've been there every day. I've found that positive affirmations can be helpful. The trick is to repeat them every day. Even if you don't believe them right now, it helps retrain your mind. Also, getting all those feelings out on paper can really help sort out what you are feeling. When you are feeling your worst, anxious, sad, and lonely write down all that comes to you. There's something about writing your feelings and thoughts. It does help purge some of the intense emotions you are feeling. Stay strong.

Thank so everyone

It maybe doesn’t help right now to hear that what you’re experiencing is pretty normal, but….it is. I’ve been there and don’t ever want to be again. Still, a bit of a red flag about how he was your happiness. If that is true, then I would suggest that you need your happiness to come from more than the presence of a person. It needs to come from inside yourself. It’s easy to feel like your life is not worthwhile right now but trust me, it is. The advice about making affirmations to yourself is great. Things will get better, believe it. Best wishes.

And yes, write down your thoughts and feelings. Journal. I've been doing that and it has helped me get my emotions out. What I do is I "write to him" but I would not send the messages. But you will be tempted to send them to him. Whatever you do, make sure you don't send them as it will hurt if he does not respond or responds negatively.

I know there are no words i can say right now that will offer any comfort. I know that it feels like the only thing in the world that could help right now is for him to come back and say it's all going to be okay. I wish there was something i could do to take away your pain. Just know you are in my prayers and you are not alone.

the truth is there isnt anything you can do to change this moment but just sit in it. you'll swear off vulnerability in order to avoid forever heartbreak, but the human heart craves the endorphins love brings us. and it will suck all over again. but this will make you stronger. try to acknowledge every day you've made it a little bit farther from that day of sadness (this is time heals all theory) its important to focus on yourself now. its important to take care of yourself. serious self care, and fun stuff. go to a river with some music. take a hike where you can be outside without distractions. meditate. these things sound cheesy, but seriously can add to your ability to manage those racing thoughts. read your horoscope. try and set weird tasks for you to do. go rock climbing. Help yourself heal. if you create positive memories while you're feeling sad, you'll avoid getting jaded.

It is sad that we put so much responsibility on another person. He isn’t responsible for your happiness, you are.

You need to build yourself up. If you don’t love you, how can someone else. Get into counseling.

I am so sorry that you are going through this. I am also in a similar situation and was broken up with a couple of weeks ago. As much as I want him back, I know deep down inside (as hard as it is) that we aren't good together. He wasn't good for me. I don't know much info about your situation, but all I can say is that you're not alone. We all in similar ways have experienced what you're going through. You are a strong person and just remember that you've had a life before you met him. It may be hard to see it without him now but just take it day by day. I don't want to tell you that "time heals all wounds" or "you'll wake up one day and not think of him" because that's just not what I want to hear and I'm presuming that's how you feel as well. He was a big part of your life. Life is hard. We all are destined to ride a particular path and sometimes things may occur that we don't like. All we can do is take it one day at a time. You'll be upset for quite some time. This person meant and still means alot to you. Do whatever it is that makes you smile in the slightest such as hanging out with your friends, going shopping, pampering yourself, exercising, or watching Netflix after you've made your favorite comfort food. All these things little by little will start to become a routine and increase your spirits. What you're going through isn't easy, and I'm sorry once again that this has happened.