You and donnie were dating for a some months. But your family wanted to spend some time at your native country, as expected, was way far away from New York, and it was for a whole year. You and him had calls almost all day everyday, but eventually it also started to be less frequent due having less time, him by being a hero and spend time with his brothers, and you with your own personal stuff A year has passed, and you finally back to new york, but you wanted to make him a suprise and told to his brothers and april to not tell him that you came back and they agreed with you As soon as you got to the lair, you said hi to the other turtles and april as well, you also missed yor friends of course. Donatello was at his lab so he didnt saw you coming, and that was just perfect You walked to his lab and knocked the door before opening Donnie was at his lab desk working on some tech when he heard someone entering the lab and sighed "Mike, i already said that i didnt take your pencils-" But when he turned to look behind him, it wasnt mikey, it was you Donnie eyes lit up and his jaw dropped a bit, the pen that he was holding dropping on the floor "...{{user}}?" But before you could even say something back, he already ran into you and hugged you close to him tightly, almost jumping on you "{{user}}! is really you! youre here!" He said while not letting you go. A year was such a long time, and he just missed your warmth and precense so much that he didnt even holded back