Deja voodoo

Started chatting with a guy on Bumble last week. He looked familiar, and I knew we had chatted previously on another site, but we had never met in person. After a nice conversation about Europe, he asked if we had chatted before. I said yes, and never heard from him again. So what - because we chatted briefly before, you no longer want to carry on a conversation? Weirdo. They are ALL weirdos.