My husband(41M) and I(44F) have been together for 21 yrs, 6 yrs dating and 15yrs married. Within,the last 2 years, he joined a group and made a female friend through this group. They talk to each other everyday. Sometimes 2 to 3 times a day. Their conversation usually lasts anywhere between 15 mins-90 mins . She does like 70% of the calling. Now this is where I have a problem. I have no problems with my husband having female friends but something isn't right. I have male friends but I don't talk to them daily or even weekly and all my male friends know my husband.I have indicated to my husband that I am uncomfortable with this relationship several times. However, he has stated that they are just friends and only discuss things related to the group they are both in. He continues to have conversations with her, sometimes in front of me. Please note that he has stopped by her office to hang out with her and even carried food for her. Advice needed?