Need advice

So I recently left my boyfriend of almost 2 years for my coworker. Nothing was really wrong with our relationship, I just felt like I wanted something new and I had feelings for my coworker and I felt like it wasn’t fair to put him through this. Now I’m so torn. I have 2 guys who love me and I don’t know what I want. I moved in with my coworker already but I can’t stop texting my ex. I love him but I love my coworker too. I just feel like a terrible person and no matter what I do someone is going to be hurt. I just need some advice, thank you.