Would you be upset?

So my relationship has been going through a rough patch. I’m 6 month PP and it’s getting easier. But times it’s not. It’s pretty bad. I’ve lost 10 pounds. I’m always stressing and being negative. I can imagine my boyfriend is stressed out and drained. But we’ve been going through couples therapy along with my personal therapy. So one of an issues is how we communicate. We have a communication issue. Both of us. It causes all the fights and things get out of hand sometimes. It’s not like us. We normally are loving and caring and a happy couple. But lately it’s the opposite. When we fight one of our issues were to not bring family in it unless it’s an emergency. Our therapist told us this. We get into a fight because he lied to my face about talking to his ex BM and I was wrong for reacting with a as he said “Shitty attitude” he told his mom. But he forgot to tell me. He told me he forgot. Then he said it wasn’t important enough to tell me. Then he said it was because he didn’t want any conflict. So he had multiple reasons. It gets out of hand because she would call him and I wasn’t allowed to speak in the house I live in too. I couldn’t come outside if she was outside talking to him. She couldn’t see my face without having an issue with me. And he listened to her and did what she asked. But with me I ask they contact in text because they are dealing with court stuff. So he should have everything on document. He told me they were getting an app to text on for the court and I come to find out they have had multiple phone call conversations that he “forgot” to tell me. And meanwhile they couldn’t contact for months because he busted her window in a fight. With their child in the car. And even his mom said everything should be on text. He even told his mom details about our fight. And what was said. And we were told to not do that.