PENNSYLVANIA: Taylor Swift won’t be happy about Selena Gomez‘s reunion with Justin Bieber. Gomez, 21, and Bieber, 19, gave the world a shock when they reunited for a Segway date in Calabasas, Califon Jan 2. Swift, 24, does not support the reunion. ‘Once Taylor finds out that Selena is hanging out with Justin she will be very mad,’ a source says. ‘This is exactly what Selena has told Taylor all along that she would not do, and now that she has, it will show Taylor that she can’t trust Selena.’–SY