Yep detachment is the key here. You are still tying your emotional state to hoping she changes her mind, and then you are disappointed when she shows she hasn't. As AS said, your expectations were all wrong.
Remember, never believe anything she says, and only half of what she does. Saying she is looking to date college guys and actually dating college guys are so far apart it isn't funny. Likely she said it to get a rise out of you. In fact, she probably said it because she started to feel something that was contrary to her "I am done" proclamation at the family brunch. You should take her saying that as a good sign as it shows she was rebelling against her feelings.
JustSad, you said you came home and kept discussing. Then went upstairs after telling her you didn't want to watch a show.
What are you doing to GAL? After brunch was a perfect opportunity to have done something to get a life. Go out somewhere, take one of the kids somewhere, go see a movie yourself, connect with friends (I realize it was Mother's Day so that last one might not have been possible.) Regardless, you needed to get out of the house after her passive-aggressive move at brunch.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018
