Okay, So me & my friend at first started messing around. We messed around for about a month I guess. But then, not too long ago like a week or 2 ago, he said he wanted to make things serious. & By that time, my feelings for him grew. At first when I told him how I felt, he said he didn't feel the same so we agreed not to talk. But he tried to talk to me & then we stopped again, so we did the "don't talk to me" thing... AGAIN! So now, he tells me that he still likes me but his ex came out of nowhere & told him that she misses him so he said he has more feelings for her :/. & it's been 3 days since we've talked so should I keep going or should I leave him alone ? What should I do?