What do you do when you're not happy with the person you're with but if you leave you're just lonely?

Well honestly, I would rather be lonely. Instead of being stuck with someone I cannot make happy, or who cannot make me happy, I would learn how to make myself happy. I know it hurts at first, but it will pass. Everything does. You just have to explore what you enjoy and what you love and are passionate about. Finding who you are and things that you enjoy doing will make loneliness feel alright. I’ve actually become good friends with my loneliness over the years. We’ve made mends, and now we actually enjoy each others company from time to time. But that’s just me. I would rather be lonely than to be with someone who doesn’t make me happy. It’s just a strain on your mental health, and overtime you will start doubting yourself. Don’t doubt yourself, ever. You can be anything and anyone you want to be. You just have to decide what’s best for yourself. Just try to be happy, love. I promise you, it’s a lot easier than you think.