We own the property jointly
While I was out he came and took everything he said was his - inc crockery we were given when we moved in etc. He didn't say he was coming over. He said he'd collected everything.
I changed the lock as I didn't trust him not to come in while I was out or bring his parents around while I was out - I didn't want them in my home and I don't trust them.
Is he allowed access whenever he wants? He's demanding a new key but I don't want him coming in whenever he wants and especially when I'm not there