Is it normal to find people attractive while in relationship?

So i. Am dating a guy and it's been 2 years now almost , we got to know each other and he is kind and sweet bla bla. As he is in college and obviously there are other girls classmates around , he has a habit of telling me , this classmate of mine yk has brownish hair and her eye colour is different, or when we watch something together he always mentions this actress is so pretty isn't she like that i just noticed he describes it to me so i had to ask is this normal or something doesn't add up? everytime she mentions some girl and tells me she is pretty or has nice hair i get jealous I don't know i feel I don't know it's kinda weird ass feeling. so yeah let me know if it's okay or i am being a baby here.

Thankyou

Is it normal to find people attractive while in relationship?
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