Non monogamous relationship?

Am I the only one who finds any relationship that's non monogamous weird? Scrolling through dating apps, a lot of the guys I talk to are in an open relationship or something .Honestly, I will be absolutely paranoid if I am in an open relationship. like, is it even a real relationship if you don't enjoy your partner in everyway possibly for the rest of your life.I've rather be in a sexless but loving relationship, instead of an open one where you can have sex with anyone.. sex isn't everything,