'Do you know what I've been through in the last year!'

I would always say yes I was there I've been with you the whole time

And all he will say is 

Well your not going through it 

He's irritable some days, depressed the next 

I don't know how to make him realize I went through it with him. I was there I know what happened . He doesn't trust me with money. We're not a team or equals.. He recently got the inheritance from his situation and he is keeping it in a separate account for the reason of that he doesn't want me to be able to access it. I have never once in our relationship use any of our money to buy anything for mysel , never asks him to buy me anything. He paid off my visa and line of credit for me (his own choice) and now when he wrs pissed off he's goes on about how I owe him all this money for it  , I didn't ask him to do that. 

We just picked out and bought engagement ring yesterday (he still has to ask ) but is it a liable reason to say no if he can't even trust me to not 'take money' even tho I never have in our lives . I'm so frustrated with this situation and he was een talking about a pre-nup which is a deal breaker for me . But I don't want to say no . I do love him :(