^^^ The sentiment is right. But it is too long.

Make it short and to the point.

Find something that can become your "mantra". Something that is true about your sitch.

So when she has a million different responses, you just repeat it to her.

Here is mine: "Mature, rational adults do not abandon thier families for "stupid reasons." "

(because my H loves to say we are getting a D for the "stupidest reasons ever".)

Keep going after her with the truth!!