When she mentioned she wasn't interested in dating, I would have said, "Not even, me?" and see where it went from there. I see it as a take it or leave it moment. If she was interested, she would have done something. If not, you would definitely know. And if she didn't, I would seriously back off and leave her be...
Me: 38 W:31 Kids: S16(mine from previous R), D10, S9, S4 M: 10 years T:12 years BD:Jan 3, 2018 W moved out: Apr 13,2018 Filed for D: Jun 2018 D final: Sep 2019