This may be a silly attitude but the way I see it, there shouldn't be a problem with who she is friends with if there is complete trust in their relationship. She always tells him when and where we hang out, and explains to him what we did / talked about etc. It's not like we're hiding anything.

I dunno, I just think it would be a shame for our friendship to die because of this. I went out with her ages ago and I thought that it was all water under the bridge now.