Margot kisses or is kissed by Robert, who is fat. It isn’t a good kiss.
Being fat, Robert is also Not A Good Person. This is a Literary Device. It is also Lazy Writing.
Margot has sex with Robert, even though she doesn’t really like him. The sex isn’t good either.
Robert rapes Margot, or he does not rape her. No one agrees on this.
Robert is mean to Margot, maybe.
Margot and/or Robert ghosts on Robert and/or Margot.
Somehow this takes 4000 words, not including arguments about it on the Internet.