tucaz
I don’t want to be exclusively negative but I have to say that it seems like you both have no idea how to work together.

Since saying the above, while obvious, is not helpful so I would suggest that you both sit together for however long it takes and figure out a framework you both can agree and stick to to solve differences as well as who is the owner of each individual process that will be required.

If you can’t make that work now, while there’s really nothing going on, can you imagine when (if) something is really on the line?

Take that chance and also figure out what is the exit criteria. What do you do when one of you want to get out of the venture?

Never enter into any sort of agreement without knowing how do you get out. It’s much easier to figure those things out now than when you are at a point of wanting to get out.

hemantv
You are trying to focus too much on money and control. Instead focus on experience, are you learning new things, are you somewhat enjoying the process.

There are ways to communicate your objections without triggering other person defensive response.

WireFraudSpammy
Vague. Felt a certain lack of collaboration on what?

Did you want to collaborate on making the wireframes?