OCD about relationships

I made a post similar to this last night but my ocd kind of morphed

one thing it's saying is that since my boyfriend would let our future kids date someone two years older/younger, I need to break up with him. Because some people said that a power imbalance is the reason someone can't consent at a young age, but there's a power imbalance between a 15 and 17 year old. I was nervous around 17 year olds at 15, so there was likely a sort of imbalance.

any advice? my ocd is killing me lol