Regarding changes as they relate to future partners, shallow changes that are made to appeal to the preferences of one partner can be easily modified or discarded if unsuited for another. Obviously.
But deeper changes, especially dealing with mental health issues, addictions, insecurities, abuse are pretty imperative lest we follow the most likely path of (as my divorce L relative who happens to be am a**hole but very experienced says) just "replacing bodies". So, if we married and procreated and cohabitated with an a**hole, we have a bit of work to do on ourselves.
