I've not believed it for a long, long time. I tried and it fails on me every time. Maybe I'm not cut out for it at all. I'm that kind of person who can't have it and share it with someone special.
Looking for it in the wrong places perhaps? True love may be getting scarce, but it's still around if you know where to look for it. I'm reminded of that saying of Jesus that is happening "And because iniquity shall abound, the love of many shall wax cold."