Paul: When Paul sees a guy flirting with you he gets jealous but he being the gentleman he is, just handles it nicely by simply telling the guy that you and him are dating.

John: He sees a guy kiss your hand, and gets jealous. John then comes over and wraps a protective arm around your waist and kisses you passionately.

George: George sees a guy making you blush so he handles the situation himself. He comes over to you and kisses you while taking your hand and squeezing it gently.

Ringo: He sees a guy trying to put an arm around your waist. Ringo goes over to the guy and purposely drops his drink on him. Ringo then gives you a wink and he puts an arm around your waist as you guys walk away casually like nothing happened at all.

I hope you guys enjoyed! :)
Sorry for not updating lately guys! :( I've been really busy.