Minor Jealousy??? Major Jealousy??

This story is NOT me getting jealous over my boyfriend, our relationship is patchy. It’s somewhat necessary info

so I have a guy friend (S), Ive been friends with him for months, He’s very nice and funny and cool! he’s honestly the best, and for a bit it was fine. My relationship with my boyfriend is pretty bad, and honestly I’m kinda tempted but I’m NOT a cheater so we’re just talking.. me and S talk all the time and i don’t feel like i have to pretend to be someone im not , we match profiles too<3 but i get a little jealous, theres this girl named E is friends with me and him but i get a little jealous when they joke, its literally been only once of what i’ve seen, and I’m the one who told him to dm her cause she was funny, but i feel like I’m being forgotten or replaced. Like, my birthday just passed snd my boyfriend just got me a gift, i just got him a figure and a watch, his birthday is in august and i don’t want to be a dick that just leaves after getting something. so i was planning on getting him a gift and breaking it off but I’m afraid S doesn’t want to wait for me. I want to be S’s person i want to be the main girl he talks to and i am!! the thought of not being just knocks me off guard. 

Even if I’m not cheating, i know I’m being unloyal.I wish my boyfriend would just call it off because he isn’t happy either.

I didn’t put this under romance because this is a poor excuse of it.