That's why I was asking what the reasoning was -- obviously, there are plenty of facts that the LW may not know or have included in the letter, but I'd be more sympathetic for BIO-DAD holding a grudge than ADOPTIVE MOM, absent any bad actions on his part.

Hopefully, both he and the adoptive family can make peace, for LW's sake. I was wondering if I'd missed something that made him more obviously at fault in some way.