I also realized, and had to laugh at myself, that part of me was afraid that if I didn’t grab and appreciate every penis that’s waved in front of me (figuratively or literally), they would all go away.
Good relationships (sexual and otherwise) are all about respecting the autonomy of the other person. The goal should always be not to satisfy yourself, while the other person feels used, betrayed, or hurt (Win-Lose). The goal should be finding a way to satisfy your own needs while the other person also feels satisfied (Win-Win), whether than is in selling a car for a fair price, or entering into a polyamorous relationship.