wow. Ditto, can't bear my breasts being touched now.
For me, enjoying it came back after 3 years with my first DS1'd dropped to morning feed and snuggles only - my milk supply was really depleted when I was on my period, which lead to soreness, which lead to feeds naturally reducing, and that's when it started that I didn't mind them being touched.. and that's also when DS2 happened [face palm emoji!]. After DS2 enjoyment came back quicker, but then he gave up feeding before he was 1 (one taste of real food, and he just wasn't interested - total opposite of DS1) - so my assumption was that it was related to some kind of BFing hormone level.