I've got to stop giving guys the wrong impression

I'm bi. I occasionally like to sleep with men. But it causes me lots of trouble, because invariably they want to get into a relationship with me, and invariably I don't realize this until I've already encouraged them a bit. This often leads to hard feelings and phone calls that I have to ignore. Also, me barricading myself in my house and pretending I don't exist for a month or two, and sometimes a relocation to another state.

I'm not against the occasional male fling. But ultimately, I prefer women sexually (even if emotionally and mentally they can drive me nuts), and a male relationship would never work out long term because of this.

Anyways, I've gotten into this situation with a very sweet man at my place of work, and now my gut is in a twist as I try to come up with a way of backtracking from my encouragement to tell him I'm not interested.

From now on, I may just keep my bi-sexuality to myself. Though gay guys can smell it on me, I swear.