Sherry--I am sorry. You have nothing to be ashamed of. You are a good mother and was a good daughter-in-law. I am sure your FIL loved you and found the newest wife to be lacking.
I say dress up and look gorgeous and poised and walk in with your head held up high.
Bipolar is what I found out that the man I married has. It seems the entire family has mental issues. His 12 yr old daughter just tried to kill herself. BTW I am wife #4 and he has six kids to 4 different women. Owes child support to WV, OH and PA total close to 100,000.00 and somehow avoids staying out of jail