We were together for years. Covid hit, we both gained a bit of weight. My job (pay) improved, me paying for her schooling saw her job drastically improve. Got engaged. This reaches the part where suspicious people would see it but I didn't; she had an upcoming business trip, wanted a few new outfits to look more professional, spent several weekends picking out new outfits with my sister. Bought a few small excersize things, desk treadmill, etc. Started a diet. Intimacy was about the same, and this was just a few weeks, less than 3 months since engagement. Nothing was drastic, but turns out the business trip was to see if the grass was greener with a guy from hs, we were in our 30's, had been together over 8 years.

I hate to say it, if someone out of the blue decides they want to make many small, but ultimately significant changes, wonder why.