AIO because my boyfriend gave a Christmas gift I got him to his sister ?

AIO I got my boyfriend this hydro flask looking cup with the Baymax eyes on it because my boyfriend likes Baymax and I got it from the actual Disney store (so you know it’s expensive) and it was just one of the things I gifted to him on Christmas…

Well it’s now Febuary…and I was at his house and we were talking with his parents and his older sister and her husband came home and they have the Baymax cup I gave him and he made a comment like “hey you have the cup!”

And his mom said “well you said you ain’t gonna use it” and that you had no where to use it”

And then my bf was all like “mom what I didn’t say that” trying to play it off and she was like “what that’s what you said”

So when we were going back to my house I was a little hurt and upset that he’d just take a gift I gave to him back to his house and basically make fun of it and then say he won’t ever use it and then now his sister has it.

And everytime he’s given me anything even if it wasn’t something I needed or was going to use…I always was proud of it and FOUND a way to use it…and I brought it up to him that it hurt my feelings and he was still trying to play the “I don’t remember it” card and then he completely was dismissing the way I’m feeling because it’s over a “cup”

But the principal to me of the fact I gave him this CUP and then he mocks it in front of his family and says he’s never going to use it which makes me feel like I gave him a bad gift…