Is it wrong to tell my ex boyfriend that i still like him?

I don't believe it's right to not tell the truth. I think it's a sign of maturity to do the right thing and be honest in all cirstances. If you're afraid of his response and how he feels, then say what's on your mind (via email or text messaging) and then let it go. At least you've done your part and you can sleep at night. His actions will always tell how he feels, unless he's trying to use you for some reason or another. If he's taking the time to contact you and communicate with you, I would think he likes you. Now in what context, that's only something he can answer.