I'm possibly in love with someone else while in a relationship
That is not good, how do you feel about that?
I like it, it makes me feel good and alive.
You can't help who you're attracted to, but you need to break up right away. It's not fair to your partner for them to be cheated on all the time, they expects you to be faithful but you're not.
Why would I do that? I kinda like the attention.
When you are in a relationship, you are expected to be loyal. Your partner is expecting you to be loyal and trusts you unconditionally. If you are unhappy in the relationship then you need to talk to your partner.