Like "Danni, you have my admiration. You have a code, and you live it. If your room mate is making you uncomfortable, maybe she needs to HEAR what you are saying. There are several things in this...1) infidelity and 2) your right to say no. Sounds like she might be bi-sexual, which is fine. You have a right to tell her no for any number of reasons 1) I don't not get involved with someone in a committed relationship...I believe in fidelity. 2) I don't get involved with friends, my friendships are special to me and I don't want to do anything that can mess it up. 3) I am not bi-sexual or homosexual. 4) I don't "love" you that way. or even 5) No, I do not want to. Harassment is harassment and your are entitled to live without it. I hope you are able to stick to your guns, and none of us would love you less for what ever you decide. Good luck, sweetie."