He said I was perfect for him, but he chose someone else?

Yes. And he will do the same for the next person. He is clearly the type of guy who is willing to tell you anything to get you to go along with what he wants. I know how you must feel, heartbroken, disappointed, and let down. This experience will only make you stronger. Now you know that a person may say it but not show it. Remember that actions speak MUCH louder than words, and always a look for the action to support the words. Keep this in mind for yourself as well. Do not tell someone that they are your center of everything, at least not until you are absolutely 110% sure of your feelings for this person.

People change. People's tastes also change. Sometimes someone may be perfect for you then a few months later they've changed so much you barely recognise them or you need something else.

If he choose somebody else then it is certain that you were not the one who he thought was perfect for him. Either he lied to you or he changed his mind when he got to know the other person.

Cause he thought that you are not good for him but in real he is doing a big mistake. he will come to you when he will realize his mistake

Life is all about change. At one point you must have been perfect for him but unfortunately we humans tend to change with time. So embrace what you are feeling andbe strong while the universe unveils next wonder for you.

Not all people are able to communicate their emotions effectively. May be he was scared to tell you that he was thinking of someone else or it's also possible that he may fell as not being good enough for you.

Sometimes people say things they dont mean in the spur of the moment. Maybe he meant that at the moment but you never really know someone is perfect for you its just in your gut if they really are or not.

Sometimes people have to choose between what they want and what they need. It may be heart breaking to someone but it is just how it is sometimes. What you need to accept is that they have made their choice regardless of what they said in the past, you need to make your future without wishing on or in the past. What is to happen will.

It happens in life, don't worry. You will find someone who actually is determined to share their life with you, and acts upon their words. Be patient and life will bring you someone who you deserve. :)

Sometimes perfection isn't what people are after. Flaws make things interesting, makes things feel... human. Although, I wouldn't change your personality, it would make things feel too synthetic.