I'm not really sure what it means. Like regular love, only more intense or deeper and without any of the downsides? I.e., just the regular love, but way more ideal?
I guess if true love is when two people truly cherish one another and rarely if ever get into fights, then yes, true love really exists. It's just that most people aren't mature enough for it and/or they get into relationships for all the wrong reasons. The fact that most relationships end in bitter breakups with both parties hating each other and never talking again is proof that most people's approach to/reason for relationships is wrong.