While USA tennis star Taylor Fritz and Morgan Riddle's relationship appeared to be in a great spot at the Miami Open, things quickly took a turn afterwards. This started with an April 6 Instagram post @usopenbeyondthebaseline that was captioned, "DUMPED: Sourced say that Taylor Fritz has DUMPED his longtime [girlfriend] Morgan Riddle". Morgan Riddle initially shut these claims down  by commenting on the post and tagging her boyfriend of six years, writing, "@taylor_fritz damn did you know about this?? 🤣🤣". Therefore, most were convinced there was no truth to this rumor. But speculation began once again a few weeks later, when the @deuxmoi Instagram account made an April 23 post that was captioned, "On April 7 Morgan Riddle shot down the Taylor Fritz breakup rumors but fans are not convinced.…