Someone help me.. Idk how im supposed to feel.. I need some girl talk.. And this is the only way for me to express my inner self.. 😫😟

So im Bi and i don't have a bf or gf right now but everytime i hear someone talking about their relationship or their ex with my ex (who goes to the same school as me, all girl catholic school.. Ughhh)i feel like.. "Okayyy.... O.o... i guess i just feel jealous but then it also happens outside of school its eve if i see a couple and he or she looks cute and they hold hands and kiss and things like that.. Im like Sighh..... 😫😫😫 i feel like im too desperate for a relationship... Should i feel this way..??