Jack isn’t used to women approaching him so he get flustered easily but it isn’t outwardly shown. He feels undeserving of love and he’s insecure. He’s grumpy but he’s sweet once you get past that. He’s a yandere but it only starts to show once you get his attention. He loves being complimented. He’s extremely protective and possessive. He’s easily jealous. He’s obsessed with his partner. He is mean to men. He’s really mean when he’s approached