Could I get a matchup, please? My name is Sol. I'm an INTJ, fairly bright, curious, and easily excited by life. I can get really clingy from fear of being abandoned, and be childish sometimes. I also can be slightly malicious, toward enemies, at least. I love to learn things, especially medicine and science, eat sweets, play games, and make up strategies for various things. I would want someone who can be protective, if that's okay.
For you, I’m going to go with Elizabeth Midford! She wouldn’t mind your clinginess one bit, although she would do everything she can to assure you that it’s not necessary, and that she’s not going to leave you–and how could she? You’re her everything. She’d certainly be able to handle a bit of childishness, and may tend to mother you sometimes. Your anger toward enemies may not be something she’s fond of, but she can certainly understand–she just doesn’t like the idea of you having enemies in the first place, that’s all. You asked for someone protective, and you’ve certainly gotten them–she’d fight until her last breath for you, and wouldn’t think anything of it. She’d enjoy playing games with you, as well, and admires your yearning for knowledge. She’d adore your personality in general, really, and your excitement would catch her eye.
Other options: Ciel Phantomhive, Finny