I have been dating my boyfriend for 5yrs now. He never introduce me to his parent neither mine.
Every time I mentioned to him my concerns, he shut me out, or he gets mad. For 5yrs, I devote myself to him, and still he can't understand that! He is so secretive about things lately and he doesn't communicate much with me. It's been a constant fighting with him. On fifth year this year, he didn't even call, nor did anything on our special day. For the past two years he's beginning to change; he doesn't show any affection to me anymore.

I guess the question I might have, should I stay with him or go because I am physically drained with him.

Well that's just weird. Not seeing, or talking about families.

What has everyone been telling everyone for the past 5 years? Hiding things? Not cool.

Nor the fact that he's secretive and treats you without affection. Can't communicate.

Sounds like a 5-year prob, that never got resolved. You either need to come to an agreement to continue. Or split.
And cut your losses & realize that he might not be for you. Not worth the hassle.

Why waste another 5 if you are unhappy.

I don't even see the point of you staying with him. In fact, you have put up with far too much for to long, and it's a red flag when couples cannot communicate and resolve their issues to the benefit of you both.

And you have been putting up with this for 5 years? A week would be too much for me.

(A week?
Two Days!! ;-)

Listen labelled,this guy's not a boyfriend,he's a sc**bag who is using you when it suits you.

Please dump asap!

Sounds like he is a guy who want to be inside of you, but not with you. After what you have yourself written down on this post, it is unknown to me why you still have that question... have you not noticed how unhappy you sound. Why do something that you are not happy with for how long, and to question ending it is even worse. Let this guy go, don't "devote" yourself to anyone as you are not sheep. You can respect someone, yeah, but it should be reciprocated.

Good Luck,
Javi

The relationship sounds incredibly unhealthy. Think of how much time you've wasted, 5 years? Don't throw away any more time on someone who is making you miserable when you can be spending time in a healthy, loving relationship or spending time learning more about yourself on your own.