what should i do ?

i have been with my so for over a year . im 22 he's 20 we wanted everything together a family ECT. last year we where pregnant unfortunately we lost our baby. after that our relationship has been uo and down. he has his monents whwre he wants to focus on him and do his own thing but still be friends but i told him i just cant be friends with my exs , he wants to have fun and feels like all of a sudden im not fun because i wont get drunk and TURN UP. but im just laid back and not with all the partying . im a family woman and just want to be with someone and build. sometimes i feel like im not good enough and i jist sont know what to do. he says he wants to be together then he has his moments where he wants to go. and he not affectionate all the time. we have been trying for another baby . but . i love his so much and i just dont know if i should just let him go which i dont know how or keep trying. because hes still here and says he wants to be together. we have also had problems with his addiction with porn which has made me have low seld esteem problems he use to watch porn when im sleep. or when i go brush my teeth trying to sneak when he can just ask for it ! makes me feel like im not good enough. sometimes i just want to leave but i love him😞 can i just have some honest woman but please don't be mean this is a very sensitive topic for me .