By Seamus Duff Peter Andre was ever the doting and protective dad as he stepped out with baby daughter Arabella for a stroll. The 51-year-old pop singer became a father for the fifth time last month as wife Emily, 34, gave birth to their baby daughter – their third child following the arrival of daughter Amelia in 2014 and son Theo in 2016. Peter, of course, also shares 18-year-old son Junior and 16-year-old daughter Princess with 45-year-old ex-wife Katie Price. On Thursday, Pete was spotted out for a walk – with the latest addition to his family along for the ride. The Mysterious Girl singer…