The pair have since married and Mendes said he bears no ill will.
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“I texted Hailey, ‘Congratulations,’ and I really am happy for them,” he said. “She’s still one of the f***ing coolest people ever — she’s not just a beautiful person visually, but she’s one of the most beautiful hearts I’ve ever met.”
It’s not the first time the “Treat You Better” singer has addressed rumors about his sexual orientation.
As the Rolling Stone story noted, last Christmas Mendes felt compelled to record a Snapchat story in response to YouTube commenters.
“First of all, I’m not gay,” he said in the social media posting. “Second of all, it shouldn’t make a difference if I was or wasn’t.”
But far from shutting down the chatter, it just amplified it. Mendes said he now finds himself trying to avoid feeding into the talk.
He also agonized after he gave former tour mate Taylor Swift permission to post a video of Swift putting glittery eye makeup on his face backstage during her recent “Reputation” tour.
“I felt sick,” he said. “I was like, ‘F**k, why did I let her post that?’ I just fed the fire that I’m terrified of.”
Mendes said he was ultimately fine with it and revealed that he grew up with 15 female cousins, “braiding hair and painting nails.”
“Maybe I am a little more feminine — but that’s the way it is,” he said. “That’s why I am me.”