Most of the people have symbolize the heart as a meaning of love, but actually, love it's more related to chemicals reactions in the brain.
Romantic Love
The romantic love is a fealing toward a partner to whome you show attraction, care and respect. It's use more like a couple love.
'Platonic' Love
In the modern days, the 'Platonic' love is a misunderstanding because is use to refer a love that is never going to happen. It's similar to a crush.