Two high-profile Aussie influencers have admitted they cheated on their exes when they first started dating. Mikaela Testa, 22, and boyfriend Atis Paul, 21, were both seeing other people when they secretly began hooking up about two years ago. Scandalous: High-profile Aussie influencers Mikaela Testa and Atis Paul have admitted they both cheated on their exes when they first got …