Of course!! She's looking older so he lost interest, fell out of love with her, and found himself a prettier, younger gal.
If she had been smart she would have just have had some work done and then they would still be together. Don't all women know that botox is the key to ever-lasting love?
Though David Pelletier is starting to look a bit wrinkly and non-youthful himself. Isn't he fortunate to be among the one-half of our species that doesn't have to perpetually beautiful?