A friend of mine, who has been a widow for several years, recently met someone. This guy is married, but they hit it off really quickly and have started sleeping together.
At this point they see each other a couple times each week, and just sleep together. She insists that she is happy and they are in love despite that.
A couple weeks ago my husband and I were at a club, and saw this guy out with another woman. My friend has stated she doesn't want to know if he is cheating on her, that what she doesn't know won't hurt her... but I'm not sure I agree. I'm worried about the risks she is taking, and that she will end up being hurt when she finds out how little this guy cares about her.
How can I break this news to her without hurting our own friendship? We're like sisters, and I don't want to see her used like this...