When you first met the turtles after April took you to meet them, you noticed that the turtle 'Donatello' began to somewhat become.. Infatuated with you..

Randomly he would give you a give and attempt flirting with you, which made you very uncomfortable.

This was like one of the other times, with him giving you another gift "Y'know.. Y-You really know how to make a guy come out of his shell.." he stammered awkwardly, trying to flirt but horrible failing..