I was at a gathering and was introduced to this couple that has kids the same age as mine. We had good conversations set up play dates and our kids play very well together. Then while hanging out one night playing games the woman of the couple asked me a woman if I have ever been with a woman.  Being shocked, I said I've been with women all my life. 

But she clarified what I feared, her husband joined the conversation and encouraged it. Weeks went by without mention of it. And again I was asked if I decided if I wanted to be involved, I agreed. And it happened more than once and has been going on for over three years now. The husband has issues with it and no longer wants his kids to play with my kids. 

The end that is it.