If you haven't heard from someone for 3 weeks, is it safe to say that they no longer want to be with you? (it's my bf) or do you think something may be wrong if he is ignoring everyone and not just me?
You say he's ignoring everyone and not just you? Maybe he's busy.. He can't cut EVERYONE out of his life, maybe... There is something wrong? :p
Just move on. And take a break for relationships. Don't both trying to contact him because if he really wanted to get a hold of you. He will do it himself. Act like you forgot about him.