Money and relationships- etiquette advice?

I just started seeing someone who has a lot more money than I do. Like, a lot. He pays when we go out, and really? I haven’t offered to even once, because there’s no way I could afford to. So instead of doing that, I try to do things for him that only I can do and that don’t cost, things like making dinner, giving massages and awesome blowjobs, teaching him how to play cribbage, bringing him to new places I know about (secret river spots, new restaurants, tequila tastings), etc.

Is this enough? Should I be offering to pay sometimes? I’m not really concerned about the gender issue thing, by the way.

Have you ever been in an economically inequal relationship? Any insights for me?

Thank you!