She shows Jughead something on his screen that brings him to tears and causes him to remark, "I remember everything."
Therefore, it's possible that Jughead's mind is slowly starting to process that information.
But we also know that Tabitha rushed Jughead, Veronica, and their other friends away to the 1950s when a comet demolished Riverdale
which tells the tale of a black man and a white lady falling in love after a comet has destroyed New York City.