Horcruxes are real. I have my heart crushed in several pieces. Each time I have loved someone moving on made me realize that i have to leave a part of me with them. I don't know how people are living with pieces of their heart without knowing where the left part is. It's like our heart is healing itself and it is making the half piece whole and yet again someone'll come and crush it along the way.
Oh yes, horcruxes are real, the only difference is in fiction they were part of a person's soul, but in life it's the heart which breaks and the irony is you don't have to be bad to break your own heart, you just have to be good enough.