She’s a woman.
She’s inherently going to believe that there’s someone better out there. Forever.
Don’t give that woman any advice.
She’ll get into a relationship. Then dump them. Get into another one. Dump them.
Eventually get married. Get bored. Dump them. Because there’s someone better.
Then she’ll fukk around.
Then find some simp.
Stick with him for a number of years.
Then the simp will get a heart attack.
And she’ll decide she doesn’t need anyone but Jesus and then she will die alone 8 years after that.
As for you, maybe the 49ers win a Super Bowl between now and then. So at least you’ll find some level of the kind of happiness in life that your cousin won’t ever taste.