Dorlin

Dorlin is the het ship between Marlin and Dory from the Finding Nemo fandom.

Finding Nemo
After crashing into Marlin and agreeing to help find his son Nemo, Dory does all she can to be helpful, even if she can't remember much at all. After slowly developing a friendship with Marlin, she begins to remember better, starting with her ability to remember the address on the scuba mask. One of the closest moments for the two is in the whale, where Dory comforts Marlin and teaches him that not letting anything happen to Nemo is not what's best for him, and when Dory convinces Marlin to jump into the whale's throat after it lifts up its tongue, letting them get shot into Sydney. But one of the biggest moments is after Nigel puts them back in the ocean and Marlin believes Nemo is dead. He tries to leave, but Dory begs him not to, as she remembers things with him and doesn't want to forget everything, to which Marlin replies he does want to and leaves her.

When Dory is caught in the net, Marlin shows a huge amount of concern, and even more when Nemo joins her to try and get her out. But after they are both free they seem to have maintained a good relationship, living on the reef.

Finding Dory
Marlin and Dory continue to be close, and Dory helps Marlin raise Nemo in a small way. When Dory remembers her family she begs Marlin to come with her. He refuses at first until she asks him if he's ever missed anyone badly to which he replies yes, as he was once separated from his son. They travel to California together and Marlin expresses his concern of her causing trouble, and after she nearly gets Nemo eaten by a giant squid, he lashes out at her, telling her to go and forget since it's what she does best. She is deeply hurt by this, and tries to make it better by looking for help. When she is kidnapped, Marlin shows incredible distress, even eventually saying her kidnapping was his fault and lamenting about it.

When Marlin is reunited with Dory in the pipes, he is extremely happy to see her, and is willing to help look for her parents, but is also saddened when he realizes he'll have to say goodbye to her. But when she gets the news her parents are most likely dead, she doesn't even hear Marlin's gentle attempts to calm her, too distraught, and when he finds her missing his face drops, (possibly thinking she is dead from being dropped on the floor) Dory shows incredible concern for Marlin and his son after she reunites with her parents and suddenly remembers he's still in the truck. When she comes back to rescue them, he smiles as she comes back and tells him and his son that they are family, and when Dory tells him she missed them he replies he missed her too. When Becky rescued Marlin and his son but not Dory, he instantly tried to send Becky back. And then cries out for her as the truck drives away with her inside. He is happy when she escapes once again.

In the end, he playfully joins in a game of hide and seek with her. But after the game is over and Dory announces she's going to the drop off, he can't control his anxiety and worry for her and follows her, relaxing as she is only looking at the view, and he enjoys it too, by her side.