Before the stars went public with their relationship, the rumor mill was working over time.In September 2011, Butler was reportedly seen leaving Hudgens' house.Hudgens last posted Instagram pics of her and Butler on Aug.
Sure, they're no Zanessa, but the HSM connection is strong with these two.
Later on in the month, the pair was spotted at Bob's Big Boy in LA sharing a milkshake and being decidedly handsy.
At this point, the media reached a collective consensus of "Yep, they're dating! After all, Butler had a leading role in Sharpay's Fabulous Adventure, starring Hudgens' former High School Musical co-star and ride-or-die best buddy Ashley Tisdale. Hudgens was even a bridesmaid in Tisdale's recent wedding.
There is no record of Butler being in the film, and he hasn't given interviews about being part of the cast.
However, Butler was doing extra work on various TV series' at the time, so maybe he just happened to be in the vicinity.