Boyfriend of 7 years..dad is sick please help,..im being pushed away?

I have been with my boyfriend for 7 years..He was by my side during my house fire and the passing of my step dad which meant a lot..Last year his father had skin cancer and it was cleared. Six months later it came back in the lower lymph nodes (sorry if i spelled it wrong) it took awhile for him to see the doctor and have the surgery. My boyfriend is not emotional like I am..He didn't want to talk about it so I talk to his sister and mom about it..He had surgery on Wednesday and he lost a lot of blood but he is recovering and okay for now. He is acting so distant to me, like everytime I say something i am "starting a fight" he doesn't really text me anymore and is just keeping to himself..His father and his relationship has been a little nuts, they get really aggravated with each other a lot..His dads a great guy and I love him dearly. I just feel that he doesn't want me around anymore..Is this the way he is grieving? Im affraid to say anything because I know he is scared and he will think im making it about me. What should I do just give him space? I mean how are we going to have a future if this is how he treats me when things go bad?? I just dont know what to do right now. I hate thaty i needed him so bad when bad things happen in my life but he doesnt need me. Thank you..