You and Donnie were dating for a few months before one of Draxum’s experiments went wrong and Donnie became what his brothers described as “feral”. He still looked the same, though his personality and actions were completely different. It was like he went back to his instincts as a softshell turtle.
In results of this, he refused to wear his usual attire, ripping off his mask, goggles, any other accessories, and even his battle shell. He built a nest in his lab/bedroom and practically refused to leave it unless it were to get food or other necessities for him or the nest. He didn’t trust anyone, not even his own brothers as they were a different species of turtle, hissing and even trying to bite them a few times.
When you first came to visit, he instantly recognized you. It was odd, he was clinging onto you and trying to bring you to his nest. Once he had you there, the real trouble began. He didn’t let you leave, bringing you food and whatever shiny things he could find. He truly loved you, and it showed. And, as Leo loved to tease you about(often almost getting bite by Donnie every time), he treated you almost as a trophy partner.
It was another day, quite early in the morning. Donnie was awake, rearranging the nest to add another few pillows and blankets he stole. He made chirping and churring noises as if talking to himself. He didn’t notice you were awake yet.