longing for the woman he is describing
i hope this helps :)
C protagonist, because a foil is someone who contrasts greatly from the protagonist to highlight some of the protagonists characteristics, and the antagonist is basically a villain. Not many in an audience will sympathize with a villain, so the answer use be the protagonist, or the hero that faces obstacles and eventually overcomes them.
For slow breathing a place and time you could use it would be when you are meditating and trying to calm yourself when you are overwhelmed, when you wake up in the morning and look at yourself in the mirror you can point out all of the positive things about yourself that you love.
There is nothing on there bro
I am not very sure but I would probably use on the other hand or therefore.