Happily married folks of this sub, what does your husband do frequently to make you feel loved and special?

I'm in a marriage that is slowly crumbling. (35M) We've been in couple therapy ,but it didn't help beyond a point. It did help us to be more aware of the underlying issues and patterns though. I'm especially working on learning to provide verbal reassurances to my wife. ( because of ADHD, it does not come to me naturally, like most NT people). OTOH wife struggles with self esteem issues and insecurities. The tiniest of stuff triggers her (like I being on the phone with parents or friends) and she starts being anxious and paranoid about me not caring "enough" about her. This accumulates over a few days and we end up fighting, No amount of clarification seem to work, they do for a day or two but the cycle repeats. At this point the only thing I know is that, reminding her that I love her \*very frequently \* works. So I just wanted to ask happily married folks here- if you can remember small, practical things that work in your day to day life that I can follow, please share. TIA! TL;DR: Wife insecure about being abandoned, asking happily married folks advice about daily reassurances that help to reinforce their relationships