Absolutely do not sign the lease! 😮 This is not a business arrangement — it’s a relationship! 😯 And it’s a relationship that’s on the rocks right now. Signing a lease agreement with him — is simply going to complicate matters, so don’t do it. Simplify, first. 😉
I’m not sure how old you both are, or how long you’ve been dating — or even how long you’ve been engaged — but without knowing those facts, it seems like you have to decide if you want a future with him or not. His not listening to you doesn’t sound like the real reason that you moved out.
Tell me more — fill me in — and I’ll give you more advice, but for now, in answer to the question, DO NOT sign his lease agreement.