My situation with my WAW....

[MrBond]

"Did I do right?"

No.

Here's what you should have done IMHO.

When she came over with the items, don't wonder why, just say 'thanks!'.

When she invited you to dinner, you should have said "sure!" and had a great time to remind her of the person you ARE and not who she imagined you were.

When she said started talking about D and ANY time she brings up D, tell her - "you know, let's talk about that later and just enjoy dinner. We're having a great time and it would be a shame to put a damper on dinner right now."

Then when you leave, you say, "had a great time. do it again some time." Kiss your son and leave.