Lost and lonely. Don't know what to do?

I have everything in life, a high paying job, great professional career, good parents, everything. Still the only reason I have been dealing with depression is due to loneliness. I can't be alone. I live here in this house all by myself and I have just been hurt in every relationship. Today I come here because this is the second time a guy got engaged with me but left me. Apart from these two guys I have even had multiple other relationships. Everytime they leave, they cheat on me, i cry, get anxiety attacks and get depressed. I don't know actually if it's depression but I can't leave my bed, can't eat, don't do anything and somehow just manage to work. But I end up sabotaging my career and myself. With so many people leaving I only feel there is something wrong with me