Am I being dramatic?

Last night, my boyfriend (28/M) and I (23/F) were just about to drift off to sleep when our neighbors started making a lot of noise during their intimate moments. When I heard her scream, I noticed my boyfriend was getting aroused. I didn’t say anything, and we ended up being intimate too because he was turned on. I get that it’s a natural response, and I should just move on, but honestly, it left me feeling uneasy and ashamed about my reaction. Any thoughts?