“I lost all my friends and my boyfriend this year. They all are together right now enjoying together and I'm alone thinking what went wrong. Seeing them happy together makes me feel sad that was I that bad that they happy even without me. Even my boyfriend is happy. I feel like I'm the one who's the problem here”
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Someone answered with kindness...
I see you've hit a low. And when you hit a low or rock bottom, the only way left to go is up. It's okay to feel sad and lonely, you can distance them from you. You should try going out in a new setting where you can make new friends, joining some clubs and entering a new friend circle.