I think the whole 'wingwoman' thing threw me too. I invited my friend fully knowing something could happen between them. However, I wasn't prepared to push her into his arms. LOL!
The more I think about it though, the less it bothers me. I just need the boundries and I'll be good to go. I'm actually adapting to it much better than I ever dreamed I would.
This is the first time in 3 years we've came to this, and I'd say overall except for a few weak moments on my part we weathered my first bit of jealousy.
It took some outside perspective to see things clearly.