Do you believe in the saying, “When you know, you know?” This certainly seems to be true for superstar, Ariana Grande, as she defends her decision to marry SNL comedian Pete Davidson. In just a few short weeks, the couple announced their relationship on Instagram and then got engaged and then bought their first apartment together. Phew! And some days, it’s hard to get a guy to like our Instagram photo. RELATED: Ariana Grande and Pete Davidson Are Engaged RELATED: Ariana Grande