person A: I had to care for my younger brother last week while he was sick. I tried my best to make him as comfortable as possible. 
person B: That's nice that you helped him. I'm sure he appreciated it!
person A: He did_comma_ he is nice and well now. I just know how horrible it is to be sick_comma_ it helps to have someone to care for you.
person B: Yes_comma_ it really does. I am sure if you get sick_comma_ he will remember and do the same for you!