Bir tek yalnızlığımız ömür boyu bırakmaz bizi..
O yüzden bence aşk, Tek kişiliktir!..
Terk eden her sevgili, ´´Sen iyi bir insansın´´ diyordu..
Anladım ki hiç biri, iyi insan sevmiyordu

Only our lonliness does not leave us alone for life time.

I think, because of that, the love for one person.

Every lover who was saying "You are a good person" whilst leaving. 

I understood no body was loving  a good person.

My Try:

It is only our loneliness that lifelong doesn´t leave us.

That´s why I think love is the only personality.

Every beloved who left said "You are a good person".

I understood no one loved a good person.

Sorry, harp00n.

No problem

Thanks Harpoon and Thanks Abla