My girlfriend doesn't want me to look at any girls ass or boobs other than hers?

this is first relationship (im 19) and don’t know what is normal. I really don’t know what to think of this or what to do, pls help me :)

Me and my girlfriend of 2,5 months had a discussion about me looking at other girls. Well looking at other girls butts and breasts.
She brought it up and asked me if I look at others girls butts and breasts. I was being honest, and said, sometimes I do but its not in a bad way and don't mean anything by it.

Its just something guys do I guess. Its kind of human nature to do so. And I feel, almost impossible not to. Other than that I like to just look at people in general. I also said that it has absolutely nothing to do with her and that the way that it makes me feel when I look at her and at random girls is completely different and not even close to how crazy im about her and her body.

Anyways she still didn't like it and found it disrespectful…

I really do love her and thats whats making this hard. I still don’t know what to do tho.
I would never do it around her, I focus on her when im with her. But when im with friends or alone I just look around every once in a while. I dont see anything wrong with it because it doesn't mean anything but she is asking me to not do it when she’s not around, like “never look at boobs or asses that are not mine”. And she says talking about girls’s appearances in a positive way with my friends or brother is not allowed.

And then she says she doesn't look at other guys their genitals, abs or arms. And she doesn't give opinions about boys with her friends and says to her friends she can't comment on that because she has a boyfriend.

Im totally okay with her giving opinions if she’s not drooling over them, I think thats completely normal. I also think she can look at other guys, its fine when im not around and its normal to just look at people, if its just looking.

what do u think?
My girlfriend doesn't want me to look at any girls ass or boobs other than hers?
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