Same thing happened to me a few days ago. We have been on and off dating for 7 years and this last time, we were actually together for almost four solid years. He’s been having a tough time with work and we were having troubles with finances. I came home one day and he asked if I ever questioned our relationship. I knew it was coming, I googled “how to tell if your boyfriend is going to break up with you” just a few days before. I have not contacted him unless it was something about moving out (we were living together about 8 months and I’ve already moved back into my parent’s house) I have been obsessively scouring the web on ways to get your boyfriend back and it means a lot to me that other people are going through the same thing right now. If you ever need to talk, I am here.
Anyway, while at the birthday party, he was asking me what I was doing later, even though I wasn’t doing anything. He left once it ended saying he was going over to his friend’s house. I had sent him a picture of a dog I was watching that he made a joke about, but he didn’t respond all night until the next morning, which was brief and he stopped texting after the second message. He texted me today asking for his Comcast information, said thank you, then never responded once I said you’re welcome.