He had a very rough upbringing.  From an early age he was introduced to 
violence and death. 

His ideal and morals are scewed, an assassin since childhood.

When he saw Tara she was the first person he felt a real interest and attachment to.

He went to several different fast food resturant until he found Tara's.

Infinitely Cursed in their flesh form can often indure more then most. Entin was
a good example of surviving against all odds. Multiple times he should have died.