Love is a verb. It's something you do, not something you fall into.
You've previously fell into crushes, not love. Now that you're not quite as desperate or 'AFC' since changing your life and perspective on women, you're still expecting those emotions of what you believed to be love to come, but they aren't, because they were never love.
If you don't expect to find the one any time soon, date around and at least make it your goal to leave them better than you found them, as the saying goes. And work on not getting bored and instead grow fond of the various qualities of your girlfriend, etc. Love isn't something you sit around and wait for. It's a verb.