My partner and I have agreed to open our relationship…. Based on me seeing other men. For reference we have been together 15 years and he is the only person I have been with. We have an ex-friend who I am considering, this person was a close friend to my partner and I and we fell out for 10 years, this person has recently came back into our lives, my partner suggested him as an option (he had a gut feeling we had more than a friendship and was convinced I had an attraction for him - i denied this for many years as was in denial and didnt not want to hurt my partners feelings, but recently admitted that I had an attraction to him) so he seems like an easy option to start off. I have never had any physical relations with this person at all, but feel like there is a flirty attraction to him. I feel apprehensive to go ahead as i am unsure how this will affect mine and my partners relationship. Is it a good idea to involve familiar people? We have planned to keep this person un-aware that my partner knows and claim to be on a break as we live in small town and think it would get out to other friends. I am completely certain that it is a sexual attraction only, this person is not someone I would ever want to be romantically involved with however have some concerns: Will this make my partner see me differently? Can we move forward knowing that would could potentially come into contact with this person afterwards? Has anyone had a similar experience?