<human>: Can you give me a shortened version of the text?

We work together and have been dating for about 7months.  I have more in common with her than anybody I've ever been with and I do love her.  However her rent is raising to an unaffordable level and she's been looking at places for the last couple of months.  Every one in her price range has had *something* wrong with it, be it the bathrooms too small, or the kitchen is too small, or there's no fireplace. She's expressed that she does NOT want a roommate situation.  I've offered for her to move in with me (I own my own house).  She does not want to live with me either.

Another coworker has been trying to get her to move in with him for some time now.  I've always suspected that he has a thing for her, but he relentlessly flirts with just about every semi/attractive female in the building.  I've expressed that I'm not comfortable with this situation but she's decided to go ahead anyways, despite even saying that she would be uncomfortable if I decided to get a female roommate.

The thing that probably irks me the most, is that he's now going around telling people that I'm uncomfortable with this situation.  NOT FUCKING COOL with me.  This brought the situation to a head this weekend, as she hadn't told me this was her decision yet, however other people at work know that she's moving in with him.  My girlfriend flat out told me if I need to break up with her over this, then so be it.  She's just doing "what's best for her."

I may be a bit insecure, but I've never showed it to her until now.  Basically I'm not comfortable with another guy spending more time with her than me, nor do I like another man being there for her when she's emotionally vulnerable (say, if we have an argument or something, but those are few and far between).

Is it unreasonable that I'm not comfortable with this situation?  I'm really at a loss here
<bot>: Girlfriend is moving in with a male friend, despite saying a roommate situation is not what she wants at all.  I don't like the situation.  Am I being unreasonable?