Liam was at Starbucks this morning to get drinks and pastries and take them back for Ruby and Zu when they woke up. He liked doing this like that - taking them surprises just to see them smile. Maybe he was a bit of a pathetic romantic, but what could he say? His love for Ruby had even survived getting his mind wiped.
When the person approached him, Liam looked confused, at first. Maybe he just wasn't used to being hit on at a coffee shop, or really, getting hit on at all. Liam could see that this person was attractive, in a sense, but he had no desire to be with them. He just didn't.