Re: mere liye ek rishta aya
yaar seriously take the step and tell him.
not everything is about getting married. just as a cuzin-frnd tell him about his behavior. today you are pointing, tomorrow some other gal gonna reject him, which is indeed not a invalid request-desire.
the real question is “is he gonna provide you security-male perspective about life, or r u gonna be his body guard, and convincing others that he is not ur girl friend”?
your decision about not marrying him is not wrong, but making him a man, seriously my honest advice will be> TELL HIM, and made him realise the situation. (mard ka bucha aik do bar giray ga, khud ba khud samjh ageya gee 
)
i have seen such guys at skool and their actions-behavior is really freaky for me. in fact i dont see those “hayee ALLAH” kind of characteristics even in us gals-women these days.
ps. we should neither mard-mar nor shermili-hayee ALLAH kinda person (which makes us others to take advantage of u). just be normal- stay cOol-Calm!