Nothing notable in my case. I'd broken up with the girl halfway through the period of using but I was still using after.

I know grandpa quit cold turkey after my dad (newly invested as a medical doctor) came home and said "You will die of lung cancer almost surely if you keep this up". And an uncle quit after his 8-year-old daughter (my cousin) said "Papa please. I don't want you to die" plaintively or something like that.

I guess some things just change the game for people.