I agree, it's a minor slip up. I had one too after I had quit for a year. In fact, it was just about a month ago. I thought the same thing you are. That all I wanted to do was cut more and that I had really messed up and now I was going to be addicted to it again.. I wasn't though. I haven't done it again. Cutting yourself one time in 7 years is pretty darn amazing. You've done a great job by not cutting for that long, and even though you had a slip-up just do your best to not think about it. The more you get angry with yourself over it the more you'll want to do it. Cool off and don't think about it. If you can go seven years you can go seven more years. Hope you're doing okay, and wish you all the best..