['When I went to college I tried to make things work with my high school sweetheart. A few months in I found out she cheated on me and my stomach sank. I never talked to her again after that.', 'How long ago has this been?', "about four years ago. I'll never forget the feeling. It was like getting hit by a truck."]
It never gets too far out of your memory. but it will fade over time. I doubt you'll still be feeling like this when you're in the nursing home.
When I was in college I had a long distance relationship with a girl from the town I grew up in. I found out she cheated on me while I was gone. I immediately stopped answering her calls and never talked to her again.