It's rude to get together with your ex's best friend.
Ulmer listens to Trisha, his ex's best friend, confess her feelings for him.
Ulmer doesn't want to hurt Trisha.
Ulmer compliments the good aspects of Trisha's personality while stressing the importance of not hurting her best friend.
Ulmer responds to Trisha's request by gently hugging and kissing her.
Trisha walks away with a new appreciation of her best friend.
Trisha loses her relationship with her best friend who spots the kiss.