Coffee shop blues

so I’m sat in a coffee shop unable to go home this morning after my 4th nightshift in a row with very little sleep during the days in between. On my way home I was talking on the phone to my BF and we had a huge argument.he has people round but all I want to do is have a bath and go to sleep. I said he was selfish (I won’t be able to sleep with them all playing games and making noise. Plus o would feel uncomfortable trying to get to sleep when there’s a house full of his friends). He said I was unreasonable for expecting him to sit around by himself all day. Now I’m in costa desperately trying to say awake and not to cry. All I want to do is go back to the house and go to bed but I feel like I can’t and he doesn’t even care. This is the closest to suicidal I’ve been in a very long time.