Blocked for no reason


I was following my friend but was blocked just after tweeting good afternoon to him but he didn’t block me and when I tried following him from my other account, twitter blocked me again. Is it possible to unblock me? I didn’t violated the rules and policies of twitter so why was I blocked just after wishing him good morning sunshine before wishing him good afternoon with a smiley face? Is it possible for this not to happen again and keep me on his followers list?