(Highschool/Early College age relationship) This is sort of an odd situation. But my boyfriend was friends with this girl before we dated, she always had a big crush on him, and then they ended up dating for a short period before he broke it off. They sort of remained friends after, but she always clearly liked and flirted with him. When we started dating he could tell I thought it was odd, and I always got uncomfortable because she would blatantly go out of her way to try to talk to him and it was very clear she still liked him. He stopped responding to her Snapchat’s a bit after we started dating. Recently though, she snap chatted him again, and while I didn’t care because she was asking him something and he was just answering, he hasn’t just left her on open yet like he had before. In this case, my boyfriend already doesn’t snapchat a lot of people, only close friends and such. So I don’t understand why he is still snapping her back if he knows she likes him, and they aren’t close....