The mother reminded us of Bessie Wierzma (not real name) (before she disappeared without a trace) & then there was a unique coincidence that they were from the Kalispell Montana area (where Barb is actually from).
Well, she didn't disappear without a total trace. People knew she was in Costa Rica, but her demeanor totally changed 180° after she left Grand Rapids & Calvin & essentially ghosted some people including a person I know named Joe who was still thinking about proposing to her.
How can you just leave what seemed like a budding promising long-term relationship without talking to that person ever again ?
"The Young and Prodigious T.S. Spivet" on YouTube