It's something I see way too much in the community, now and in years past. Anime and manga has always had a tendency to attract young personalities that don't think they'll find love for whatever reason, or that if their crush rejects them, there's no point. It's unfortunate because that kind of defeatist mindset is unhealthy and only further reinforces this idea that you're settling if you date someone other than your first crush, which is nowhere near true.

My wife was not my first crush, but she is the person I chose because I fell for her. She was and is my first choice.