Unsure of what to do with boyfriend

i am going out with this boy and i have known him since pre-school and we started going out 6  months ago but now we dont talk or hang out together or see each other at school-not even at lunch- i know he still likes me but he has stopped talking to me or even achknowledging that i am there. i still want to go out with him but i want him to treat me like his girl friend ...HELP!! should i give him a second chance or should i dump him?