I agree.I'm not sure. Before you experience it, I think it's easier to say it's better to have to love and lose it, but after you have it, you wonder whether you couldn't done without the hurt or pain. The feelings are not something you can walk away from so easily. Love takes so much out of a person that when it doesn't work out, it leaves you feeling drained and sometimes discouraged or cynical. Then you go into other relationships hoping you'll find it again or avoid investing as much as you did the first time so you don't experience that loss again. So, I'm not sure if it's better to have loved and lost because having that thing and losing it can hurt like the dickens.
Just as a bit of a counterexample (I didn't vote to avoid bias), I generally favour knowledge over ignorance (though I acknowledge that ignorance sometimes leads to greater contentment). But I'd rather not have to worry about feeling love at all if I had the option.But many people also believe that knowing too much is better than ignorance. They'd also be the type to say that it's better to have loved and lost than to have never loved at all.