ML changes because of the FL's love for him

 kwoon:

rather than the ML changing/growing because he has a crush on her

This one's hard. I feel like the ML's feelings are almost always the driving factor behind a romantic ML's change, rather than what you're looking for. The only example I can think of that might fit is:

• Healer - The ML is quite isolated / cut off from society at the beginning of the drama. When he suffers a loss mid way through the drama he becomes extremely isolated and cut off, but the FL's warmth and feelings for him get him to open back up / start reconnecting with society again.

and maybe:

• The Story of Ming Lan - Partly because of how poorly his family treats him, the ML makes some bad choices. He's the son of a prestigious noble family, but at one point he ends up as the leader of a river gang while looking after a daughter he had with his mistress. The FL meets him again at this point and, kindly but seriously, gives him advice about giving his daughter a better life. He takes that advice very seriously and it's a major turning point for him (it's also the point where he falls for the FL, but I'd still say the change should be attributed to her concern and advice rather than his romantic feelings). That said, the FL didn't have romantic feelings for the ML at this point. He helped her in a desperate situation when they were kids, they were taught by the same teacher for a little while, and the ML was the FL's brother's best friend, but that was the extent of their relationship at that point. She was grateful to him and wished him well, but they weren't close.
• Oh My General - From what I remember, the ML starts the drama as someone whose talents are not appreciated and not well applied, and the FL's support helps him channel his talents into useful activities that give him purpose.
• My Mister - This one isn't really a rom. The ML and FL are both good people struggling through difficult circumstances. Viewers are very divided about whether to interpret the leads' feelings for each other as romantic or platonic, but either way there's definitely mutual respect, empathy and strong feelings between them. With the FL's company and moral support (among other things), the ML is able to face several difficult challenges that he previously avoided.