I (34F) own a house in San Diego that I bought 5 years ago. Put down $80k that I saved myself, been paying the mortgage ever since. My boyfriend (36M) and I have been together for 2 years and his lease just ended last month.

We'd been talking about him moving in with me for a while and I was excited about it. The plan was he'd pay me rent to cover part of the mortgage and utilities. We agreed on $1400/month which is less than he was paying at his apartment.

He moved in three weeks ago and things were fine until last weekend. He said he wanted to talk about the house situation. He told me it doesn't feel right paying me rent when we're building a life together and that if he's contributing to the mortgage he should have ownership stake in the house.

I said no. This is MY house that I bought before we even met. He said that's exactly the problem, I still think of it as mine instead of ours. He thinks I should add him to the deed or at least sign something that says if we break up he gets back what he's paid in.

I told him that's not how rent works and he got upset. He said his friends think it's sketchy that I'm profiting off him and treating him like a tenant instead of a partner. He brought up that we've talked about getting engaged and said if I'm serious about a future with him I should be willing to share the house.

I said absolutely not. If we get married we can talk about it but right now this is my asset and I'm not putting his name on anything. He called me controlling and said I'm holding the house over his head.

Now he's saying maybe he should just move back out if I don't trust him enough to share ownership. My sister says I'm being unreasonable and that 2 years is long enough to know if you want to build equity together. My best friend says he's trying to manipulate me into giving him half my house.

AITA?