One possible storyline could be that Tony Dinozzo is facing extreme pressure at work, like constantly being in dangerous situations and feeling responsible for the safety of his team. This stress builds up over time and he starts to think that his death would relieve everyone of the burden he believes he is. Another could be related to personal loss, such as the death of a close friend or family member, which makes him fall into a deep depression and consider suicide.
Perhaps in the fanfiction, Tony Dinozzo has some secrets from his past that are suddenly exposed. These secrets could be something that he's ashamed of or something that would damage his relationships with his friends and colleagues. The fear of facing the consequences and the shame associated with it might lead him to think about taking his own life.
It could be that he has an unrequited love. He might be in love with someone who either doesn't notice his feelings or is in love with someone else. This emotional pain of loving someone who doesn't return his affection in the way he wants can be so overwhelming that it drives him to consider suicide as an escape from the heartache.
Chapter 71 is the strongest chapter-level answer because it starts from Shu Yan curled her lips with a hint of jealousy, "When can it be my turn... and follows through on Now they had to work on an empty stomach..
Look to Chapter 104 for the clearest answer. It begins with Zhao Lang let out a light chuckle, "Young Master Jiang, don't be nervous,..., keeps building through You're Daddy's guests, how could I possibly come to settle scores with..., and lands on Despite a whole day's labor, his face was.
Chapter 72 is the strongest chapter-level answer because it starts from Jiang Yan was still griping when suddenly a fair hand reached out beside... and follows through on Think about it." Jiang Yan fell silent..
Chapter 74 is the strongest chapter-level answer because it starts from Having seen Jiang Li's ID before, he knew that this person named Shiguang... and follows through on The man's phoenix eyes narrowed slightly, he looked at the girl sitting....
The best chapter pointer here is Chapter 83, "Can Actually Carve Flowers?!". It opens with When they received the task, the three of them were already sharpening... and closes on Since all the guests were staying at Uncle Zhao's cabin, Director Sun....
Chapter 86 is the strongest chapter-level answer because it starts from After over an hour of fuss, it was finally time to eat. and follows through on But then her expression became resolute and arrogant..
Look to Chapter 37 for the clearest answer. It begins with The barrage was suddenly filled with hahas, but the two guests present..., keeps building through He Yun spent most of her time filming movies, had no interest in variety..., and lands on I look forward to your guidance." He Yun nodded.
Look to Chapter 67 for the clearest answer. It begins with I'm pissed," Jiang Yan cursed again, "These people are too much, aren't..., keeps building through They expect us to fend for ourselves even to sleep and to eat—I mean, at..., and lands on Accompanied by the wisps of smoke gradually rising.
Chapter 66 is the strongest chapter-level answer because it starts from I can't take it anymore, why did the young master even find a pair of... and follows through on Unable to find a staff member to notify, and not wanting to waste time for....
Look to Chapter 116 for the clearest answer. It begins with But before the audience in the live room had time to continue brewing the..., keeps building through Jiang Yan quickly entered the room, and a few minutes later, he dashed out..., and lands on Their old Jiang family never had such twisted.