You shouldn't stay in an awkward relationship.
Mat is dating Ann, but they don't really have a lot in common.
Mat doesn't want to hurt Ann's feelings.
Mat breaks up with Ann telling her that he's to blame for the relationship not working.
Mat stays with Ann even though they aren't having a lot of fun together.
Mat is content with his decision and feels relieved that he's finally out of the relationship.
Mat is upset and secretly wishes he were with someone else.