[*mazedsalv**]

Aww thats horrible. They are being idiots to be frank, they have no reason to be rude about you.

If i was in your position I would tellthe bf about the friend cheating on him.... its not like she can dislike you more, she sounds like she is a liar herself. Its revenge. Also, the bf will give you credit for telling him. But If i knew about something like that and i was close to the person being cheated on I would tell him.