Zac Efron & His Ex's BFF Too Close for Comfort

7/6/2011 12:02 AM PDT BY TMZ STAFF
Zac Efron may or may not have hooked up with his ex Vanessa Hudgen's BFF Ashley Tisdale, but if he did ... is that SO wrong? Apparently not -- in Harvey's head ... and soap operas.

Check out TMZ on TV -- click here to see your local listings!