<human>: Hello relationships! Couples finances is something I don't know much about, so I'd love advice and opinions from you guys. 

My BF, "Zack", and I have been together 4 years, living together for 3. We talk about getting married one day, down the line. He doesn't make a ton, but he makes much more than I do. I'm a small business woman, and sometimes struggle. 

Our finances are separate and we pay for everything 50/50. 

I work from home around the clock and rarely take days off. But I love what I do and want to grow my business, so that doesn't bother me. I'm very passionate about it and want nothing more than to continue being my own boss. He works a normal job 40 hrs a week, occasionally more. 

When I'm home, I do more cleaning than him, about 70%. I do all the cooking. It makes sense, since I'm here all the time. He's too tired when he comes home. 

But my business is still growing and I'm worried tax season is going to break me. Would I be out of line to ask him for financial help? $200-500 of help, likely. 

We've been together a while. I don't think it'd be crazy for him to help me. We're a team. But he's also very frugal, LOVES saving money. And I don't want him to feel used. But I feel a little resentful that he makes so much more than me and sits on it when I struggle to make ends meet. 

Honestly, if I asked, he'd probably not help me and tell me to get a part time job. Which would hurt, but maybe he'd be right.

What do you guys think?

Can you give me the gist of the text in a nutshell?
<bot>: BF makes more than me, we have separate finances and split costs 50/50, but I do 70% of the housework and 100% of the cooking. Is that fair?