I hate the fact that i can't help now but feel like my FP is putting in effort to fix and rekindle all of his old friendships and putting all of his effort into fixing them again when ours is so desperately in need of TLC. He broke up with me about 3 weeks ago and regretted it and got back with me the next day, telling me he wanted to work it out and try harder and communicate more. But the other day i found out he emotionally cheated on me and flirted with another girl continuously. It was revealed he didn't tell me the truth a lot and that he hid things from me. Our relationship desperately needs his attention and co operation- he needs to communicate and talk to me and put in effort to fix it. But i feel like only im trying to better it and that he doesnt actually care and hes fixing and rekindling old friendships to avoid fixing ours and to be able to leave me with ease. 

This feeling of he doesn't care if we work or not is killing me inside. I'm so scared he's gonna just up and leave me. Even when he's telling me he loves me and all of that i have a nagging doubt at the back of my mind. He doesn't care about my emotions and he doesn't care how alone i feel. And the worse thing is i can't tell whether this is reality or just what i think is happening and if it isn't reality i'm just pushing him away more and more. I hate being scared he's going to leave me