For starters, donāt do anything right now. Donāt do anything at all. Donāt try to talk to them about it, donāt break up, do nothing. You need to make sure whatever you do, itās not a reaction from the hurt and embarrassment you feel right now.
I donāt know the specifics of your situation, so Iāll try to keep my advice general. Talk to the most level headed person you know about the issue, what youāre feeling and ask them what they think. Whatever they think, you need to decide if youāre willing to stay with someone who doesnāt like you the way you like them. Itās unlikely that youāll be able to āconvinceā them to like you more. If you do want to stay with them, consider taking a step back from the relationship and giving only as much effort as youāre given.
As for feeling better, try going out with some friends and just hanging out. You need to remind yourself that you are a kind and interesting person that people like to be with. Anyways I hope you feel better :)