Hi. Some of you may already know about my case. I have a homosexual younger sis who is having problems with her partner. Her partner is bi and had an ex-boyfriend with whom she did some sexuaal stuff in the past my sis cant get over. So now, the relationship is in trouble. What's more, my sis is a depressive. She has asked me for help, but I just dont know what to do or to tell her. I have never really had a serious relationship, but I do worry that this case will trigger her depression. Any help?