Okay so I'm new at this and I'm never really open with my feelings but maybe this will help. My…

Okay so I'm new at this and I'm never really open with my feelings but maybe this will help. My boyfriend and I are expecting our first little boy and our relationship is going to hell! He lied to me a few weeks ago about going out and stuff and I wouldn't of cared if he would of just been honest we just have so many problems I can't even type them it would be a book. We use to have the best relationship and communicate about everything and it's been going down hill lately and I have no trust in him anymore and ask questions about everything because I don't feel reassured about our relationship and honestly feel like we don't have one and we lost his mother which is my sweet baby's Mimi last week due to and unexpected heart problem and things have just gotten 100x worse he won't talk to me about anything and keeps saying all I'm worried about is myself and I'm the most selfish person he's ever met. Iv never seen this side of him and I'm just lost. Idk what to do anymore.