Why can't I lie and play games when it comes to romance?

This is a very important matter to me personally so I’d really appreciate some perspective. I suck at relationships, because most people, almost all people, conceal the truth and choose to reveal an image of them that’s not real. So they make it far. They have good relationships. Because its based on some lies.

I have been lied to many times by my romantic interests, mostly about them not seeing others while seeing me, or being in contact with their exes, or even sleeping around. They lie so that they can control the situation, or they fear they’d lose me, but I just can not imagine playing these ‘necessary’ games in romance. Which is why I always fail, because I am perhaps too direct and honest. I tell my intentions instantly, I can talk about others I am seeing, I can even easily reveal if they were to ask whether I slept with someone the other day. But the truth is almost always denied to me. Its frustrating because in all other areas in life we accept honesty as a virtue, but in romance, it becomes harder to practice, I guess. Am I simply wrong in wanting authenticity and honesty from my potential partners, and is it okay to lie in matters of romance, and why? Whats your opinion on this?