My boyfriend doesn’t understand my family problems

My boyfriend is 21and I’m 23 almost 24 so 3 years age difference. We just started dating 2 months ago but have been talking since like January. I’m in therapy because I have family problems and I have PTSD due to childhood issues.

My boyfriend comes from a very religious family, his parents are married and they’re very close. They’re always doing things together and spending time together. Growing up my parents never wanted to be around me so I’m used to being alone.

I’m starting to get worried we’re too different to pursue marriage because he doesn’t get my feelings. Today we were in a store and I was talking about Father’s Day and how my dad doesn’t deserve a Father’s Day present . Which in my opinion he doesn’t, I don’t really speak to him much and he has been really verbally rude to me lately. Then my boyfriend got upset and told me not to say thay and that I’m an adult so why should my dad have to be around me.

Just things like that make me feel like he doesn’t get trauma and how it lasts for years especially a chronic condition like PTSD.