SEATTLE – Thirty-five fights into his career, Jake Ellenberger might finally be coming into his own – in a couple different ways. One that’s been very much on display for Ellenberger (29-6 MMA, 8-2 UFC) in the buildup to his fight this week is the level at which he’s hyped his UFC on FOX 8 co-main event with Rory MacDonald (14-1 MMA, 5-1 UFC). Ellenberger has upped the trash-talk quotient to the nth degree compared to past fights. “People take this sport too seriously – that’s my opinion,” Ellenberger told MMAjunkie.com (www.mmajunkie.com) on Wednesday in Seattle, where he meets MacDonald on Satuday at KeyArena. “I did it for a while, too. I came from the Marine Corps, in the military