This is silly and unnecessarily fatalistic.

Two people who fell out of love can absolutely fall back in love.

Of course there’s a long list of barriers and it won’t happen every time. But you have a daughter and this is your second marriage. Doesn’t sound like there’s abuse or toxic acts happening. Why not try?

You will never sustain a long marriage if you aren’t willing to fall back in love with your wife. If that’s not important to you, then maybe don’t get married? I mean that genuinely and not sarcastically. It seems it would make more sense to have non-legal LTRs if you know you will want to end things when the love fades.