I've only had one long term boyfriend [M 21] (4 and a half years) and we broke up earlier this year. As time progressed my long term high school best friend [M 21] and I began having casual drunk sex. Which was very unexpected and we have never had a sexual relationship or felt attracted to each other until now. This has continued and for around 4 months we've been doing it sober and feelings are now involved. The only problem is that my ex has admitted he hasn't moved on at all  and is completely in the dark about my current romantic status. It is also a big problem considering we all went to high school together and my ex and him are also friends. I want to break the news, but am not sure how. We are also concerned about how our friends will react due to the fact that he has dated a girl before who another friend was interested in at the time and it was very messy (that happened around a year and a half ago). For all these reasons many of our friends are in the dark but I am very much over keeping it a secret and want to do something about it.

Am I just in over my head in this situation? Would appreciate advice from people who have been in a similar situation or even just general advice.
user
Been having casual sex with best friend and current crush for about 4 months. My ex has admitted he hasn't moved on and
assistant
I've only had one long term boyfriend [M 21] (4 and a half years) and we broke up earlier this year. As time progressed my long term high school best friend [M 21] and I began having casual drunk sex. Which was very unexpected and we have never had a sexual relationship or felt attracted to each other until now. This has continued and for around 4 months we've been doing it sober and feelings are now involved. The only problem is that my ex has admitted he hasn't moved on at all  and is completely in the dark about my current romantic status. It is also a big problem considering we all went to high school together and my ex and him are also friends. I want to break the news, but am not sure how. We are also concerned about how our friends will react due to the fact that he has dated a girl before who another friend was interested in at the time and it was very messy (that happened around a year and a half ago). For all these reasons many of our friends are in the dark but I am very much over keeping it a secret and want to do something about it.

Am I just in over my head in this situation? Would appreciate advice from people who have been in a similar situation or even just general advice.
user
I am romantically involved with my best friend who is also my long term ex boyfriend's friend. Help.
assistant