I'm very embarrassed with myself

I feel like such a weirdo. My friend called me into her room and my stupid eyes just immediately tracked the worst thing to look at, I know she noticed, and god it was so awkward. I didn't mean to look there, it was just where my eyes went, I feel disgusted with myself. This is definitely going to haunt me for some days, maybe her as well. I hope she doesn't think I'm weird. Should I try apologizing? Should I just let it go? I don't know. Maybe it doesn't sound that serious but I take my friends comfort seriously