Complex sentence: After a deluded Gareth reveals his plans to seduce Her, he is shocked when she begins to pressure Tim to make a greater commitment, he realizes that his ongoing love for Dawn is far greater than his feelings for Racheal and breaks off the relationship.
Split into simpler sentences: After a deluded Gareth reveals his plans to seduce her, Tim is shocked when she begins to pressure him to make a greater commitment. He realizes that his ongoing love for Dawn is far greater than his feelings for Rachel and breaks off the relationship.