Genuine v. Disingenuous Compliments

An AP and I have been having a private discussion in which she asked me if my own kids ever offer disingenuous complements that seem awkward, forced or ill-timed.  Example, "You're an awesome mom", when there is no real interaction or 'cause' between mother and child.

This really triggered me because while none of my own four kids has done this sort of spontaneous outburst of "love" or "admiration", compliment mode did happen A LOT between myself and my own Amother. 

Often I would send her written notes, or say out loud how much I loved her... how great she was, even if she was doing nothing for or with me.  [Mother's Day would be a common time to pour-out words of love, but that was also expected from me.]

As I try to recall my own memories, it's not as if I didn't feel a measure of love or admiration for my Amom.  At the moment, when I was expressing such kind words, I meant them.  It's just those sentiments didn't last very long.... the more negative resentment feelings would soon follow, and those feelings I'd keep to myself.    [Our bond and attachment was never was that strong... I believe after time, the fake forced niceness and dislike was mutual.]

Before I go into my own interpretation as to why I'd make such awkward, almost forced and scripted loving declarations, I'd like to know if "insincere sincerity" sounds familiar to other adoptees or APs.