Love, Why is it so hard to find?

I am 30 years old , I've had many relationships , all of them ended badly except one , either they cheated on me or found me to be not what they expected or were just having fun playing games.  the only one that didn't end bad eventually did , we couldn't be together because people would nose in at the age difference , me being the younger by the way , but we parted our ways slowly and not long ago she passed away leaving a giant hole in my heart , but i still want to find that one person i was meant to be with.
It gets harder everyday to find someone to be with long term , the world changes so much everyday i guess it changes people as well. People like me are rare it seems , or so I've noticed , the old ways of doing things has gone away little by little , and yet there are younger peoples like me that cling on to these ways.  There are more and more divorces everyday because people jump into relationships out of lust or puppy love , its a sad thing really , I myself have never married and when i do It'll be the last and only time , because that's how my morals and self beliefs are , i don't think people take commitments seriously enough anymore and it leads to divorce and breakup , to thine ownself be true , anymore people are not true to their selves or others , i hope this trend will change and that people will take being in relationship's more seriously.
Love has become a word or a "cool" thing to do.