Fake FB Profile

I am a married woman. I filed a divorce case. I created a fake profile on Facebook because I am not sure to get separated from my husband so in order to judge his real behavior I chat with him through a fake profile, because I have doubt about his character. Is this is any possibility that I can punish for creating a fake profile in the future? Is it a cyber crime or not. can I use this as a proof of cheating of my husband in court for a divorce case?