Peter Andre worried he would be branded “boring” if he admitted he was teetotal. The 51-year-old pop star gave up alcohol more than a decade ago, but he kept the decision quiet for some time and often made “excuses” about why he wasn’t drinking to cover up the fact that he’d decided to give up booze. In his column for OK! magazine, Peter explained: “I don’t drink anymore myself … We’re at a time where it’s no longer ‘uncool’ not to drink. “I remember when I stopped drinking, I always felt I had to make excuses. I’d say things like, ‘Oh, I’m driving’ or ‘I’m on antibiotics,’ because I was wor…