When you love them deeply from your heart.

when you are loyal to them.

When you do everything you can to show them how much you love them...  and they still can not love you, respect you and appreciate you.

Then it is time to walk away because there is always going to be someone else willing to give you the things he would not.

Only when he has lost you that he will truely appreciate you.

When you love them deeply from your heart.

Onları içinden gelerek sevdiğinde.

when you are loyal to them.

Onlara sadık kaldığında.

When you do everything you can to show them how much you love them...  and they still can not love you, respect you and appreciate you.

Onlar için herşeyi yaptığında; onları ne kadar çok sevdiğini gösterebilirsin...

Ve onlar; seni hala sevemez, (sana) saygı gösteremez ve minnettar olamazlar

Then it is time to walk away because there is always going to be someone else willing to give you the things he would not.

Sonra çekip gitmek zamanı gelir, çünkü onun sana veremediğini verebilecek birileri her zaman olacaktır.

Only when he has lost you that he will truely appreciate you.

Sadece seni kaybettiğinde sana gerçekten minnettar olacaktır.

In this context "appreciate you" means more like to understand how valuable you are than to be thankful to you

Sadece seni kaybettiğinde değerini bilecektir/anlayacaktır.

Thank you for your help it´s better now.