A born performer Melt has become a well known celebrity around both Hoenn and Unova (and even Sinnoh, to a lesser degree). After being gifted a Fennekin by his mother Melt would begin to participate in Pokemon Contests at a young age, often at the behest of both his parents. Though he would not make a name for himself until much later. At around the age of 15 Melt would begin using both a different name (the one he goes by regularly now) and a different appearance when he performed in a somewhat desperate attempt to separate his personal life from his celebrity life. This was not so much for himself, but because he believed it would make his parents realize when to start being parents again instead of just being his managers. It never ended up working. Instead, two years later, Melt took on being an idol on top of a coordinator only skyrocketing his fame further and causing his parents to become more engrossed in their "work".
Over the years Melt would begin to grow disillusioned with the entertainment industry. Though he could not deny he loved performing, he loved contests, and he loved the attention... he found himself wondering why he was doing it all. Was it really because he enjoyed it, or was it because his parents had manipulated him into believing he enjoyed it? Yet despite this the thought of abandoning the industry was unthinkable. He really wasn't built for anything else and although their relationship was strained, he still desired to make his parents proud and their dreams come true. Jealousy, betrayal, two-faced words, and so much more darkened the industry Melt found himself entrenched in making him second guess often if he could even survive it. Surely all he had to do was reach perfection. If he could do that he'd be strong and untouchable and surely become well loved by not just his parents but the world itself. Right?
Whether his arrival on Nozama was fortunate or unfortunate no one could say. On one hand arriving via plane crash while heading to Unova wasn't ideal, but on the other the island provided an opportunity for a new beginning... a chance to start over and, maybe, really figure out who "Melt" actually is. Did he even want that? To start over? Well it's not like he was given much of a choice considering he literally couldn't leave if he tried. His only choices were to crumble or rise up, and he sure as hell wasn't going to let THIS be the end of him. Still with his Fennekin having been fused with another species of pokemon upon arriving on the island it was a sign that things here were going to be FAR from simple.
Mother: Although Melt's relationship with both his parents is strained, he was always closest to his mother out of the two. While she would constantly push him (often past his limits) and was his biggest critic, she was also the most vocal in bragging about him and showed affection whenever he would make her proud in some way. There's no doubt the relationship was transactional on her end, even if she never realized it, but when Melt did things "correct" her praise and pride made him feel good. It gave him the desire to continue pushing and rising higher in popularity. Melt isn't stupid, though, he knows the way she acted wasn't right or normal... but at the same time she and his dad are the only parents he'll ever get. Surely if he achieves her dream for her, she'll recognize her mistakes and become the mother she's supposed to be, right?
Father: Unlike his mother Melt's father took a far more distanced approach to him. Whether it was from some deep seeded jealousy, a fear of some kind, or something else entirely Melt couldn't say. Regardless he has few memories of his father being... well, a parent. Even when Melt would try to initiate conversations his father would never reciprocate in a meaningful way (unless, of course, it was about his career). As such Melt naturally started to drift away from him. The complete apathy Melt's father felt toward him often times felt even worse than his mother's shallow actions.To some degree Melt struggles to balance wanting to be independant and take control of his life with also wanting acceptance and love from other people. He wants to make his choices for himself so he can be proud of them, yet also wants these choices to be seen positively. If he can't get that acceptance and love from his parents or peers then maybe he can get it through fans instead.
Melt is often not even aware of the intrinsic reasons he does things and frequently pays more attention to the extrinsic motivations. This is often why it's so difficult for him to break away from the toxic mindset of needing to be perfect; he risks losing everything if he fails. Or what he perseves as everything anyway.