Son and his gf recently split after 6 years, (no kids, weren't living together but planned to move in together over the summer) and she's been part of the family for the last 5 years and we are fairly close. My feeling is that she's made her decision to leave him and that decision means she can no longer be part of the family. Am I being too harsh? I don't see how we can carry on with the same relationship that we had previously.