Its only cheating if you actually DO something. From what you said, the person who came over drunk is the person who wanted to be doing things, but you didnt.... and then you fought with them about it... or did you want to do something too? so what do you think you did wrong? (because i cant see anything) you should perhaps tell your partner, and ask advice about what they think you should do... because if i was you, I would feel my friendship had been abused by the person who came over.. drunk and raving.

its not cheating, and you should definitely tell your girlfriend about it.

Tell her IMMEDIATELY. You haven't done anything wrong yet, but if you keep it from her for any length of time, she's going to wonder why. There's no such thing as "I didn't want you to worry about it" or "I didn't want to give you the wrong idea" in situations like these--she's going to find out sooner or later, and both of you will be happier if she finds out from you. By the way, this answer wouldn't change if you actually had cheated on your girlfriend. Once again, she'd find out somehow, and assuming you want to keep the relationship, it's in your best interest to be the one to tell her. That way you can present it from your perspective, tell her how much you regret it, and generally show her how bad you feel. If she hears it from anyone else, though, there's a time gap before she talks to you in which she's feeling angry and hurt, and by the time you get a chance to respond it will take a lot more sucking up to prove you're sorry.

Its not cheating, you didn't do anything, so you can stop feeling guilty. As for whether you tell your girlfriend I think there are arguments on both sides- it depends a lot on the friend, your girlfriend, and the relationship you all have. Personally my instinct would be to not say anything- nothing happened, you did nothing wrong, nothing good can come of her actually knowing and in fact it may cause more trouble- (I often think there are some perfectly good relationships that break up because people believe in absolute honesty at all costs- some things are best kept under wraps if they hurt people) she may worry you aren't telling the whole truth, she may get very suspicious, she may feel hurt and worry that you would actually have liked to be involved with the friend (particularly if she has any form of self-esteem issue) or she may be very angry with the friend and attempt to confront her about it. In some cases, honesty is not always the best policy.If you feel this was just a one off, unlikely to be repeated or spoken about again, best let sleeping dogs lie. On the other hand, if you think your friend has genuine feelings for you, rather than it being a one off drunken incident, if you think she may blab to your girlfriend, or to others and exagerate what happened, its probably best your girlfriend hears it straight from you- a quick chat with your friend to work out where you standmight be of some help here (embarrasing as it might be) Whatever you do, think carefully first!

If you feel guilty, you must have done something wrong. Why are chicks just showing up at your house? What if your girlfriend was at your house and she just showed up? If you tell your girlfriend that girls show up at your house sometimes, she's going to get jealous. If you want your girl to trust you, you need to gather yourself, bury this story and never speak of it to anyone...

There is no need to tell her, why let this get in the middle of everything, if you tell her your relatonship is over because it will be thrown in your face forever. Don't do it and don't listen to these people telling you to do it. Shit happens

i don't think you need to tell her about it since you didn't cheat. but it depends on how you're reltionship is, some couples tell each other everything. as for you're drunk friend, she needs to respect your relationship.

YES. Tell her - as a girlfriend who had a similar situation happen to her boyfriend I know that she will have a lot more respect for you if you tell her and are open. That is what relationships are made of. Don't let her find out some other way.

Even though you probably don't want to, you should tell your girl. She might be mad at first, but I think if you explain that you "declined the offer" and fought with this other girl about it, she will see that you are truly only in love with her.

You should feel guilty.... Free pussy cmon....