He doesn’t care…

So my husband and I grew up differently and he comes from a not so loving family, while my upbringing was the opposite. Long story shorts he’s mean sometimes and I don’t like it and when I tell him I don’t like it, he gets upset with me and says “it always me, it’s my fault” sarcastically. I’ve asked him to contact a therapist to help him learn how to communicate. He won’t go to couples therapy. He recently told me while I was trying to add something up in my head, you’re not gonna get it(he adds quicker than me). When I told him it hurt my feelings and that it wasn’t a nice thing to say he snapped at me and said “I don’t care how you feel, I really don’t… you took it the wrong way!” I’ve talked to my therapist for help but I don’t know what else to do we’ve been together 7 years and these last 2 years have been rough. How can I sway him to go to therapy???