When I suspected my guy had a sidepiece, I did some amateur detective work to find her. And then I picked up the phone.
Doctors are suddenly very interested in my personal life the minute I tell them I am not worried about preserving my fertility.
Being friends with the women I'm attracted to is not a duty; it's a privilege. I don't hold them responsible for their own non-attraction to me, or privately begrudge them dates with others.