Struggling with how to live this new life

I've been struggling with how to live as a single person. Wow, what an adjustment!  We had such a busy social life when we were together. I still have lots of friends, but without a partner, there are many boring times!!!! And lonely! For instance, last night I could find nothing to do, so I went out with my H! It was fine, but noy what I want to keep falling back on. After all, I am planning to divorce him! Plus, when people see us together it confuses those who know, and he never tells anyone about our problems, so his friends most,y don't even know!  I'm to the ppint where I want people to know I'm single. Well, almost single!  
so tonight, I looked around and found lots of opportunities to see bands, or festivals, but again, I could find no one who wanted to go! Ugh.   And when I've asked someone to do something 2 or 3 times and they turn me down, even ihe the. Reason is legit, I still feel the ball is in their court, because I don't want to become that pesky, needy friend constantly asking to go out.   I want someone to approach me! But I am lonely.  I weeded the garden, and worked on a painting I need to finish, later ill read. But I feel like a loser, home on a Saturday night.   I miss being happily married so much!!!!! 
Im scared to have years of this ahead of me.   But I don't want a cheating husband either....