i love him

im rose, im inlove with my boyfriend, and he's 8yrs older than me, but despite our age gap, we have a nice flow of relationship, but suddenly we've got no communication and problems started, he started to hide things from me, and he dont even answer my mails and text,. i always say that im very willing to let him go, but honestly it seems that i cant live without him, being away from him makes me weak and in fact my studies were greatly affected, i want to talk to him, but i cant spoke out the words i want to say,. what am i going to do to overcome the pain? and to go on with my life as if there's nothing wrong. i really love him and im very desperate on getting him back on me. please help me, thank you.