The question of how he knows Luke is easy enough to answer, at least; it's the question of how it'd come to be that Reid is someone Luke would think to invite here that he's worried about because he hasn't really been able to come up with an answer himself. They're friends, of course they are, Luke is the first friend that Reid has made outside of work in a long time, and they've already shared so much of themselves with each other that Reid normally wouldn't share without years of having known someone; but even so, being invited to a party that includes other people, which he supposes is exactly what a party is, has had him agonizing here and there over whether it means something more.

Or whether he should just stop thinking so hard and appreciate the fact that Mindy isn't looking at him like she wants him to leave.

He's done his best to look presentable, though his hair is still a bit wilder than he'd like it to be because he hasn't thought to get it cut since arriving in Darrow, and in the messenger bag he still has slung over his shoulder is a polite birthday card he'd bought, along with a gift card to a boutique calling The Dressing Room that he'd happened by just yesterday. Reid has no idea if it's appropriate for her but based on what Luke had told him about Mindy saying any gifts should include a receipt and the beautiful dress she has on now, he thinks maybe he'd gotten it right.

"I met him on my first day here," he answers, fiddling with the clasp to his messenger bag, unsure of whether he should present the card now or simply leave it with wherever the other gifts are, which would probably be wiser. "He helped me a lot, with the whole no-escaping-the-city thing? I'm pretty sure I would have thought I was having a psychotic break if he hadn't shown up." He bites down on his lip before bringing his glass of cider to his lips, nose twitching at the bubbles as he takes a short sip then clears his throat. "What about you two? How did you meet?"