Problems

My boyfriend tells me that he has shit going on in his life and the other day he said that there’s like some serious things with his family and I told him that he can tell me but he just won’t. He always says that he’ll tell me another time but idk it really bothers me how he doesn’t think he can share his problems with me. I was like to him “I’m you’re girlfriend” and he was like “yeah so you don’t need to know about it” and he is from a different country so has a very different culture to me so it would be hard for him to understand why he should tell me idk. I’m trying to be really patient with him but it just hurts how he won’t open up to me😔 also he saw my self harm scars the other day and kept asking me about it and asking me to tell him about it but I don’t get it bc that’s like him contradicting himself??