Depressed

Lately , I found out my SO cheated on me . & I feel like he truly isn’t sorry . I feel like I’m STUCK IN A RELATIONSHIP I DON’T WANT TO BE IN.. after we had are son it was alright . But I notice we didn’t have that same connection anymore.. mind you he’s 27. He should be more involved with his kid but he isn’t . & he says couples should stay together no matter what for the child . So I know for a fact as much as he tells me he loves he doesn’t & that’s why he did it . As much as I tell him he hurt me bad he just says “ sorry “ I feel like he try’s to manipulate me . But I know I’m stronger than that . I just feel suck in this relationship. After what he did I have no respect towards him , losing my feelings for him . I’m just lost . I feel like I’m getting depressed just thinking about the whole cheating situation.. he just got his D sucked and met up with her twice talked for who knows how long they were talking for but she made it sound for a long while maybe months . But only meet up “ twice “ . Idk girls I just feel like I’m losing my mind . It really did hurt me & idk if it was my fault for always a assuming he could be cheating and look he finally did . So I blame my self for it a lot .