Q: I am 15, my boyfriend is 18, I used to get warned that he would cheat or something, and he would always flirt with other girls, his friend told me a couple days ago that he was talking to a girl we met, before we were dating. He has been telling me since we starting talking he feels like I've changed him and made him feel like he wants to stick with one girl. Who he said is me. What if he is seeing her