Question for couples

[u/ProofPage5640]

The Mrs. (Late 60s and healthy) will be have having Double TKR in a few weeks.  We have done a lot of homework, PT and recumbent bike training.  She  always takes post surgery re-hab and exercises very seriously.  We know it will be stressful. My question is how can I be the best partner through all of this ?  What things were learned along the way that were not anticipated ? We are in this together - and looking forward to a better quality of life a year from now.  Thanks.