My ex was very sexy and loved when men were seducing her. She was in her early twenties when she was fucked by 50+ yo guy. Then a few years later she was fucked by a man in his late 40s.
The change of the lingerie is typical. My wife switched from thongs to cheeky panties. Probably her girlfriend preferred them. She also started to wear dresses.
My wife was usually coming home form work with one of her colleagues. He was living nearby. A few times they were late for about 2 hours for no particular reason. So you should watch for suspiciously longer running.
My ex was petite and very sexy. Small but nice tits and great ass - the perfect sex toy. Almost every man not just liked her but definitely wanted to fuck her. She liked the sex very much and could take a dick in any hole. I regret that I should use this more as an entertainment for me and her...