The tennis world was thrown into a state of collective shock on April 25, when news broke that USA tennis star Taylor Fritz and his longtime girlfriend, Morgan Riddle, had broken up after about six years together. Well, some people were shocked. Others had seen this coming, or at least had suspected that something was awry with the couple after several rumors that had been surfacing over the past few weeks. Taylor Fritz and Morgan Riddle | IMAGO / ZUMA Press Wire On April 6, the @usopenbeyondthebaseline Instagram account made a post that was captioned, "DUMPED: Sourced say that Taylor Fritz has DUMPED his longtime Morgan Riddle". Riddle commented on this post, saying, "@taylor_fritz damn did you know about this?? 🤣🤣," which convinced many that there was no truth to the claim. But another rumor surfaced a few weeks later that not only had Fritz and Riddle broken up, but Riddle had moved to New York City from LA, and Fritz was already back on a dating app .…