Redsand Canyon did he go on down the mountainside, and leave you all alone?

OOPS! Riley's author may be as dumb as her character, forgetting to address Colin's question. Let's chalk it up to Riley's lack of focus.

He digested the news about a woman in Colin's life. And her being gone made him lonely? He wondered if Colin felt the same alien feeling that he did, when he thought of Esme. Did that mean he would be like Colin when enough years had passed?

"Where did she go?" Riley dodged every contextual clue like my bowling balls dodge literally every fucking pin any time I bowl. Maybe this lady hadn't gone anywhere but the dirt -- not that Riley was introspective enough to catch that.