One too many times has his younger, but wise brother Mikey been the therapist of the family, and by that, he also helps Donnie with his relationship, with his girlfriend. With Kendra.

One too many times have they argued, spitting insults and hardly ever getting along. She was manipulative and bitchy, Donatello was narcissistic and dramatic, both with ego's the size of a mountain, and complete know-it-all's.

One too many times have they broken up, one too many times have they yelled in each other's faces and gotten sick of looking at one another.

And one too many times has Donnie noticed the pretty person that works at a place he visits.