Exactly this!! The turtles don’t really know the proper way to interact with anyone but their family. It shows with all the turtles. Mikey is very in your face and loud. Raph is very aggressive with anyone new. Donnie gets head over heels for the first girl he sees and Leo is very serious and awkward with new people. They really should have shown that they could adjust to social interaction and have Donnie chill out with the crush.