The jealousy one is true. If you can't spend time with your family and friends without getting an earful, time to move on. But there is a big red flag if the guy plays the jealousy card after obviously suspicious behavior.

Say he does the disappearing act, he texts others while he's with you, he breaks dates without notice, etc. You ask him about it, and he is "hurt" by your insinuations. He gives you a lecture on jealousy, calls you controlling, and throws in as a guilt trip, "If there is no trust in a relationship, I don't know what it is, but it isn't love." You feel awful for questioning him. Then it turns out he really was two-timing you, all along.