person A: When I met my girlfriend she had a 5 year old son. We have been together for years now and I consider him as my own child. 
person B: That is so sweet.  I really commend people who treat kids like their own_comma_ it's so important for a kid to grow up feeling like they have a lot of people in their corner.  I have a stepdaughter myself.
person A: You know then how it feels to have a child that is not your own yet accept them and love them unconditionally. You're awesome!
person B: Yes_comma_ it's true in life too when you grow up_comma_ sometimes the best family has nothing to do with blood relations.