People ask,why would Chris lie or not tell his fans the truth about his relationship? Well, I think the reason is that as an entertainer or a singer decisions are made based on how they will affect business and profits. In other words don't change the Image that has made you successful or who you are or wealthy.
Now, here you have an attractive, talented, likable and very marketable singer/dancer/actor.
His fan base is going to be girls and women who fall in love with an IMAGE and when that IMAGE changes they may or may not CONTINUE to be fans because the 'dream' has died. Managers and business execs alike tell you to do one thing, you wanna do something else and that's where the confusion begins.
I don't think Chris set out to deceive his fans, I think he's heard other stars state that LESS is BEST but things got out of hand and he's young. He's learning, don't be so hard on him.