<human>: I'm Homer, my wife is Madge.  Our son Bart (22M), and his GF (22F) Tiffany have been together about 2 years.

So, somehow Madge knows about Tiffany being in uncomfortable communication / situations with other guys.  Bart said that Tiffany had to make a choice, whether they were together/monogamous or not.  I assume that Bart told Madge.  Don't know.  Anyway, Tiffany picked Bart and cut off the other stuff a year ago.

This was a year ago.  Now Madge holds this against Tiffany.  I think that Madge only says this crap to me.  I hope so.  But she's all about "Tiffany can't be trusted because of (crapbefore) and I'm worried about Bart."  Then I say something about how young they were/are.  Then it repeats later in time.

I'm afraid that Madge will speak out to someone else.  Or maybe already has.

The thing is, that this is not nearly as bad as the crap that Madge put me through years ago.  Madge had this exBF named Mo, and she kept having this effed up relationship with him, essentially going on dates, and always saying, "that's over, and we're just friends."  I was an inch away from dumping Madge over her relationship with Mo many times.  But, as you have guessed, Madge was super hot, and I let it go for a long time.

Question: should I tell Madge to drop the bashing of Tiffany because Madge(25 years ago) was worse than Tiffany(1 year ago), and we should give Tiffany the same slack that Madge received years ago.  I really feel like unloading on this, which is why I just shut up.

Summarize the given text in a few sentences.
<bot>: My wife is bashing son's GF for the same things that she (my wife) did 25 years ago.  Should I point out the hypocrisy to make it stop?