The Senator was smiling, looking fit and trim and feeling jovial to be sure. After the 37-year-old ring warrior retired on April 9 following his third fight with Timothy Bradley — an impressive victory — he knew, possibly in a matter of minutes, that he had made a mistake. “First, when I hung up my gloves and I realized, I feel lonely because when you are thinking that the sport you love, you’re no longer active, I felt lonely and thinking about it over and over that boxing still likes me. Boxing loves me and I love boxing,” Pacquiao said. “So why should I stop my boxing career? That’s why I changed my mind. So I decided to continue my journey as a boxer.” This will not be a one-shot deal, either, says the man who knows Pacquiao better than most, longtime trainer, friend and confidant Freddie Roach. “Working in the Senate is not easy while you’re training,” said Pacquiao, a freshman senator in the Philippines. “You manage your time and that’s what I did in training for this f...