Not me.

Marriage is a promise for to people to people to keep dating as long as they both feel like it.

I’m not 100% what you are asking.

We aren’t sure that time travel into the past is impossible, although I think everyone more or less agrees that it likely is, but if it were possible to time travel into the past such events would almost certainly have to follow the Novikov self-consistency principle. That is, if you travel into the past then you have already been in your own past before you travel into the past. So more Tenet than Back to the Future.