Wants ring he is now calling an engagement ring that was given as a birthday gift
2 attorney answers
Given what you have said, it doesn't sound like any of them were given as a gift, but rather in contemplation of a proposal that he assumed you would at sometime accept. If you don't return the rings upon demand, you are positioning yourself at risk of being on the losing end of litigation.
Advice on this forum is for informational purposes only and should never be mistaken as a substitute for legal advice. If you are in need of legal advice, you should consult local legal counsel.
"Engagement Rings", by definition, are given when someone asks the other person to marry them AND they agree. If he still gives it to you then it is a gift and is yours. If you tell him no to the proposal he should either take the ring back at that time or admit is it a gift.
It doesn't do much good for him to ask for the ring back because there is no engagement, especially since he apparently hasn't asked for the other rings back and has a long history with you telling him no to marriage.
If I were to decide this case I would not order the ring returned. What a judge would do in your State is up to the judge.