Does saying wait Really close or open the door any more or any less - I'm not sure it does.
Given where you are at my feeling is that something more positive is the right response. Something that says your moving on so not bothered either way.
Probably not a bad idea to post a draft for people to look at
Both mid 30s, 2 young kids BD 7sep14 XW moved on long ago, now living with OM1 D paperwork in progress