Well, there are a lot of different factors at play here. A couple are...

1. Is your girlfriend bisexual or simply in an experimental stage (like, college. lol)
2. Do you have any physical / emotional relationship with her friend as well?

I'd say this is going to put undue strain on your relationship with your girlfriend. It might not if her other love interest didn't *live* with her, but up till now you've been the only person in that relationship, and now not only are you not going to be the only one, but not even the closest one.

I think for it to work at all you're going to have to establish some pretty solid (and nearly unrealistic) boundaries, move closer (if your relationship is in that stage move in).

Now that you're beyond putting the genie back in the bottle the best advice is to tell you as someone in a now poly relationship I think you made a mistake. In your situation I'd have been against it as a primary, unless either the girl moved out or I moved in. OR, I'd let the whole situation go.

It's hard to date long distance, it's damn near impossible to date long distance, have another person enter the relationship when that other person is closer on a day to day basis than you ever were.

Proceed with caution. :)

Having a relationship long distance isn't impossible. It simply requires different expectations and acceptance about what each person can give to the other. Value what you and your girlfriend share with each other for what it is. Try not be feel threatened. Because the minute you do, the minute there's something to be threatened about. And don't insinuate yourself into your girlfriend and her roommate's relationship without communicating with everyone involved first.

another perspective... first, I don't believe there are "mistakes" each relationship or experience we have helps us to grow and teaches us about who we are within or out of relationships...

"allowing" your GF this experience will help her to know what it is she is looking for in future relationships... it helps her to know herself. it does NOT have to mean she is giving you up for another,

Don't push her to choose, be open to the conversation and communication,

Communicate your feelings openingly with her..... as well as the doubts you have, being honest goes a long ways in establishing the trust

ya can decide to do this as openly and honestly and lovingly as it seems to be now, by the fact she was considerate enough to TELL YOU about it....

or you can resist and most likely risk her not feeling as though she can be open with you and therefore not share her feelings or actions any further with you.

and, no matter what, as the relationship changes, it either grows or whithers... it can't remain the same because people dont remain the same.. they change and grow from their personal experiences..

the trick is to change and grow together....

long distance relationshps are difficult, but not impossible... and you can't control what someone else does or how they feel, you can only work on your own relationships and yourself and hopefully the honesty and openness you share with your GF can at very least help you to maintain a healthy friendship... if not more....

time will tell, try to hang in there, keep the communication open and flowing,

I wish you the best....

Bare

In addition to al the good advice you've gotten so far, I'd suggest you try to set up a three way conversation where everybody could talk about what's going on and their point of view of things. When you say "her roomate exclaimed she liked her and wanted to date her" that could mean anything from a casual thing to a hot and heavy romance. Do you know what she means and also how your gf sees it? Anyway, good luck working this out, if you folks can talk about it you could likely pull it off as a positive experience for all involved.

The only thing im worried about is if my girlfriend falls in love with her girlfriend as they live with each other and I bieng an hour 1/2 away have hardly any time to really make up for it. Add the fact that I have a revoked liceance and have to be totted everywhere leaves me wondering if I even have a chance.

HAVE A CHANCE....
a chance of what??