I had oneitis before. I hate it. It's madness. It does not allow you to focus on your goals.

Yet, here I am again and start getting this feeling again. I wait for my phone to ring. I check if she's online. I'm getting sick on the idea that someone else fucks her.

Any advises on how to prevent this from escalating?

I do have goals and I work on them furiously. I don't talk with many other girls (I could, but I don't have plenty of time and I doubt this would work get over oneitis).