[kerben]

It was not too wise to start out down this path with your co-founder in another country - with that said - my advice to you would be to simply trust your gut. Based on what you have described, I don't think equity is the problem. There seems to be an established history of 'flakiness' and he clearly doesn't seem to share your passion. If you continue to sense his heart just isn't in the project then you should cut your losses and sever the relationship. If you do split up make sure you get a waiver from him.