You're thinking of Anne Francis (actress who died in 2011). She was in both movies you mentioned.
Connie Francis was in a couple teen movies for instance, Where The Boys Are.
I dated in my 50s and I asked myself, am I interested in becoming a care giver to the elderly? My answer was no.
Finding love is a young person's thing because you're looking ahead at a lifetime of good health. Later in life there are real world concerns to be measured against getting involved...
I cherry picked them out of playlist that YouTube brought up. I felt it was the right thing to do. Let your conscience be your guide I was always told.
Rhythm of the Rain
The Cascades
Our Day Will Come
Ruby & the Romantics
Don't Let the Sun Catch You Crying
Gerry Pacemakers
Georgy Girl (Stereo) (1999 Remaster)
The Seekers