Liking someone 4 years older than you ?

Me and This Guy Met eachother on instagram . He Is 17 and im 13 , a 4 years age difference . We Started talking on Kik and he's really different from other guys . He takes things slow and doesnt go too fast . we didnt even know eachother's facebook. we help eachother out alot . he helps me with my boyfriend problems and i help him with his girlfriend problems and we've been talking for about 8 months now and the past 8 months i felt nothing for him . But then one day i said "I Wonder how your voice sounds like " and so we exchanged skype names . we started skyping and got closer to eachother I Started to like him since then and i started asking for his facebook . we got in touch through facebook , Kik , instagram , and Skype . i even Started having dreams about him . he even had dreams about me too . we would call each other once or twice a day and 6 hours each call talking about everyday things . Is Liking someone older than you by 4 years wrong ? by the way , he Lives all the way in virginia and i live in minnesota so he cant do anything to me . he is also graduating next year while next year im going to be an 8th grader . Is it wrong ? is the age gap too much ?