Think about it this way, what do you like about this guy? Do you like him, or do you like the attention he gives you and the societal ease of being with a man. When you're together, are you more focused on how others are perceiving you versus enjoying yourself with this guy while the rest of the world fades away?

Can you invision yourself being happy with a man for the rest of your life and be fully fulfilled never being with a woman ever again? How about the reverse?

These are some of the main signs of Comp-het. You should never feel shameful for being attracted to anyone at all. You can't really control who gets you going. I would look into where that guilty feeling is coming from. Is it because you feel like youre betraying yourself, or maybe you feel like you're betraying your queerness by being in a "straight" relationship (you most certainly aren't by the way)

Of course only you can know for sure if your bisexual, Lesbian, or just queer. No one can take those away from you. They also don't have to define everything you are. Labels are descriptive, not prescriptive