I'm not one for online help.

[majordave]

She may not be doing it intentionally, or even realize that's what she's doing, but basically, she's using you to fill the gap for whenever she doesn't have anything better going on, and you have to decide whether or not you're comfortable continuing to fulfill the role of being her "fallback guy."

I can't really give you much advice on this because there are some who don't mind. However what it's doing is preventing you from moving on with your life and finding a real relationship with someone else.

I wish you the best of luck!