Ashley Tisdale and Vanessa Hudgens, who were once inseparable BFFs and best known for their roles as Sharpay and Gabriella in the popular High School Musical film series, have drifted apart, with speculations going on about a falling out. Over the years, fans of both actresses have deliberated on the cause of their rumored falling out, especially after Ashley Tisdale was noticeably absent from Vanessa Hudgens’ 2023 wedding to Cole Fucker.In a recent exclusive publication by The Sun, a source revealed that the two Disney stars were slowly drifting apart as they grew into different women; however, Vanessa’s breakup with her then-boyfriend, Austin Butler, was the final straw in the unraveling of their relationship.“Vanessa and Ashley were already drifting apart just due to becoming two different adults from the young girls they were when they became friends. But their friendship officially ended when Austin [Butler] broke up with Vanessa,” the source told the publication.The source alleged that Vanessa felt like she didn't receive the support she expected from Ashley during the breakup.“Ashley and Austin are best friends, too, and Vanessa felt Ashley was much more supportive of Austin than she was of her. She didn’t feel supported during that breakup and felt Ashley focused on herself, her family, and her problems when Vanessa was in a time of need.”They continued:“Eventually, it was healthier for them to no longer have a close friendship, so there was never a question of Ashley being invited to her wedding.”Adding:“By that time, they were done. Ashley tries to seem like a girl’s girl, but she doesn’t back that up when she’s needed by her closest friends.”More details on Vanessa Hudgens and Ashley Tisdale’s relationshipAshley Tisdale and Vanessa Hudgens had one of the sweetest friendships, and fans believed Vanessa when she said in a 2017 interview with Women’s Health that her relationship with Ashley would last forever.“I’m a loyal person,” Hudgens said of their lasting friendship. “She’s one of those girlfriends who will be my friend forever.” View this post on Instagram Instagram PostUnfortunately, things didn't turn out that way. In 2024, when she was asked about her friendship with the Princess Switch actress, Ashley Tisdale gave a lukewarm response.“I haven’t seen her in a long time. Obviously, she’s working, I’m working. I have a daughter. So it’s like, you know, she has a full-time job.”The two still follow each other on social media and have not addressed their alleged falling out. Ashley is still friends with Austin Butler and was seen hanging out with the actor as of June last year.Also read: Why was Timothy Busfield ordered to pay $150,000? Past assault allegation resurfaces as actor faces child sex abuse warrant