I'd argue that in order to make somebody else happy you'd first have to find a way to stop being miserable on your own.
Loneliness can suck, but how do you think a potential partner would feel when they meet you and learn that you cannot stand on your own two feet or start moping as soon as they are out of the door. They will (very likely) want somebody to lean on; not somebody they have to babysit.
'Become' somebody people would want to be together with.
AM-ZYNK
As for your question, out of all the billions and billions of people, there have had to be some that never got any love.
And as for your last statement, that’s not true, one day you’ll find someone that will care about you, don’t give up so soon!