Texas A&M cheerleader Brianna Aguilera appeared to be glowing with happiness while posing next to her boyfriend just weeks before she was heard arguing with him over the phone and plunged 17 stories from an apartment building. Aguilera smiled ear-to-ear as she held a wand and wore a sparkling crown alongside her college beau Aldo Sanchez, 20, who wore an eye-catching green-and-gold jacket as the pair were outfitted as Glinda and Prince Fiyero, respectively, from the “Wicked” films for Halloween,