Thx @cmarshall
The reason why I am changing is what I wrote before and also with this Covid-19 you never know what is going to happen, and suppose something bad happens to the Wife (who is also not in the greatest of Health), I have then (when on a extension of stay based on Marriage) 7 days to pack my bags and leave!
I am not going to divorce or anything, but I always thought of going this route and we often discussed this, but finally this year taking the plunge.
If they ask why I am changing, is just to make their lives easier 555555555555 ????