AITAH for wanting to end my situationship

So me and this girl have this really weird situation-ship well maybe not weird the label she put on us is “friends with benefits who love each other very very much” Shes made it clear since the beginning she doesn’t want a relationship or anything like that and when we were setting up boundaries she said it would be best if we weren’t exclusive since then we would basically be in a relationship. She always tells me she loves me and we’ve made out a couple times. Anyway now that the context is set up we had our prom this weekend and we both went with different dates since the situation-ship was kinda a new development after we had already invited plus she wants to keep the whole thing a secret. In this prom she made out her date and I know I have no right to feel this way but I feel like a cuck and want to end the entire ordeal. Would I be an asshole considering when we set up boundaries I had no problem not being exclusive?