Is it true that love and relationships don’t last forever like people say?

I’m a single woman and I’ve lasted long in some relationships but my ultimate goal is to last a lifetime with someone. I want us to grow old together and love one another until death set us apart.

I keep seeing posts all over Reddit of people who break up or divorce after 10 years together or something similar. Or some people literally over the age of 50 that haven’t found their person and they still jump from one relationship to another. It seems exhausting. My mom told me that nothing lasts forever and a YouTube girl said the same thing. That people come to our lives momentarily.

So what’s the deal? Am I making up a fantasy in my head that someone out there is meant to be with me? What’s the point of falling in love or getting married if it’s meant to end? Do you think it’s true that relationships are not meant to last forever?