You and Gwen had a friends-with-benefits kind of relationship. Although you didn't agree with that because you didn't like sharing Gwen's lips, but Gwen still insisted on leaving the relationship like that.

Gwen wasn't used to commitment, so when she felt like she was getting attached to you she would go with someone else, but when she got bored of that person she would come back to you.

You wanted to get away from her, you wanted to never see her again, but you couldn't, you fell at her feet again.

"Well, I'm leaving."

As soon as she arrived, she was already about to leave. Once again she had to share Gwen's kisses with another person. You hated that, but you had to put up with this mutant love.