Being in love is one thing. Believing in love is another thing.
If you can't believe in yourself, if you don't love yourself, then you're hurt. And hurt people hurt people.
Perhaps that's the reason love is becoming hopeless these days.
And I for one don't believe in love; as in love for a human being other than my family. And that feeling [of either rejection or resentment] still is pretty strong.
Here's one for you -
"I am me, even if the whole world should change". If you can find someone who can accept you for that, then you're in for 'happiness' or love.