Kinda thought they were a thing, too, for a moment but not anymore. I have another theory though.
When we were out on a field trip, we saw a heart with S+C initials in it on the monkey bars.
Let's assume that S stands for Shawn, then who is C then?
Caitlynn? Well, she says Shawn is like a brother to her, so it's very unlikely.
Cassandra? Maybe, but when we ask her about Miller, she says that he's an old friend, and then when we press her with "just friends?" she replies "hardly even that".
I think it's another Hill sister - Claire. When MC asks Kate if Claire will visit them, she becomes sad and answers "she won't".
And if I recall correctly, it's implied that something terrible happened to Shawn in the past. Putting two and two together, there seems to be a connection between them. We'll have to wait and see for ourselves if it's true.
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