I tried to get the ex-GF into unsupported touring. She never took to it despite us taking several together. (She’s a very strong rider.) We did some supported tours and also went to a cycling “resort” in Italy. When it came time for me to do unsupported tours after she was no longer interested in them, she was totally cool with that, whether they were a week or two long or just long weekends.
If she cannot support your desires even though you support hers, I’d say there’s a control issue within your relationship, possibly rooted in jealousy and/or insecurity.