Isabelle is hardly an expert on relationships, but she's pretty sure that kind of reaction is normal. She hasn't been seeing Billy for all that long but it already takes her longer to get to sleep if he's not there, and she hadn't ever realised she wanted another presence in her bed. Still, it's nice and comforting in a way that she never thought it would be. She'd always written romance off, but Darrow has a way of making her re-evaluate everything, including, apparently, her stance on love.

Spencer continues and Isabelle cocks her head to the side, curious. It's not like the two of them to be secretive about anything really, and she's more confused about the fact that she's apparently the first one being told whatever this is. It's not that Isabelle doesn't think they care for her, but she's aware that she hasn't built the same kind of bond as Alec has. She's used to that though, used to holding people at an arm's distance even when she cares about them a lot. Regardless, it means a lot to her that she was asked out for coffee, let alone to be told some apparent secret.

"My lips are sealed," she says, miming a locking motion over her lips. "I could draw a silencing rune but that seems extreme." She flashes him a smile. Isabelle is good with secrets anyway, has been good at them as long as she can remember. She'd kept her father's secret, her brother's, and now she can keep Spencer's, too. "What's going on?"