Marriage Counseling

My husband recently reached a new high of stress and became so paranoid that I was cheating that he went into my laptop and read all my emails, messages, anything he could get his hands on. He had prepared for me to deny or delete, and took SCREENSHOTS. I feel violated and a little guilty for the harmless (or so I thought) flirting he found, from a male friend I recently reconnected with. I feel like his reaction is so extreme but maybe not. I don't know. Would love to hear of counseling is a good route, or should I pack because I'll never have his trust.