then I'm a fucking arsonist, I'm a rocket scientist
platonic
Beers and cheers all around! What's this guy trying to find at the bottom of the bottle? Friend's he's got aplenty, and cash to burn besides. Generous to a fault with his inherited wealth, he'll give to any sad face with a sob story. He's a sucker for orphans and the abused. He'll stick to you like glue if you share his interest in things old and obscure.
antagnonistic
Don't. Mess. With. Family. Not his blood relatives, working to grow his fortune despite his spending. His family is chosen, real and warm. They defend each other from the big bad world. Don't mess with them. Seriously, hell hath no fury.
romantic
A loose concept for Lucas, but also a serious matter. Not long after his 19th birthday, he came to the conclusion he *loves* everyone, especially if they're interesting. He's attracted to a whole bunch of them, too, though more restrictions apply. So it's incredibly easy to make him fall for you, just as easy as it's for him to move on and forget all about you.
familial
Such a tense and tricky subject, he holds all those within this category at arm's length. Perhaps further. They're not his favorite people and he's very loathe to give any one of them a second chance. But hey, that just means you should try harder. He doesn't know how much he'll heal wounded parts of himself with the right cousin to inspire him beyond... all this life.