Don't contact her whatever you do! Give her a chance to miss you.... Let her come to you. Be confident and let her wonder what you're doing, if she messages you don't reply straight away, ignore it. She will message you again if you ignore it and she will miss the attention you give her. Seriously she won't come back to you if she knows your sitting at home missing her and chasing after her... If she gets bored easily then you need to be unpredictable and don't contact her for at least a week