Is he cheating/wanting to break up?

I have a amazing best boyfriend(well to me), but we have a problem.
when we talk to each other we are okay but it's the time we talk to each other. We could talk for about 2/3 days then we wont talk for about 2 weeks. That's a problem because it's now a habit in our relationship....its been almost a full month since we talked.
I have a feeling there's a girl involved I probably don't know about and it drives me to tears....I've been crazy for this boy since I met him and I don't want to let him go because I feel insecure...I know I should tell him how I feel but I don't want him to feel like a bad boyfriend and think I can do better because honestly I think he's the best guy that's out there for me and I hope he feels the same...also please tell me if I'm to pushy or lenient to him so I know what to do to bring us a closer hopefully happier couple or if it's too late...
thank you please respond kindly :)

You sound like a good couple, but 2 things.
1- how old are you both?
2- have you had any physical contact or sex?

hmm.. look.. physically attachments aren't really important if he loves you and respects you.. so I don't think he's cheating..
and if he's not talking to you, why not talk to him?? maybe he's also waiting for you to talk to him or miss him? and also show him that u miss him and so..

then you should tell him that you're afraid to lose him cuz u guys aren't talking much lately.. don't tell him that u think he's cheating cuz that would piss him off :)
good luck and hope ya the best :D