Is it normal to hate being in a relationship?
Yes, it’s normal to dislike being in a relationship or simply prefer being single. If you hate the relationship you’re in, though, that may be a sign it isn’t right for you—not that something is wrong with you.
Some people love the closeness and routine of a relationship; others find the compromises, expectations, or loss of alone time exhausting. You’re allowed to prefer being single, and you don’t have to keep dating just because it seems like the default.
If you mean you hate your current relationship, pay attention to what’s behind that feeling. It could be a mismatch, feeling pressured or unheard, or just not wanting this relationship anymore. You can take that seriously without deciding you’re bad at relationships or that you’ll always feel this way.