Caught Off Guard / What Do I Do!?

So this is my longest streak since I put up 40 in October. Going strong, been feeling really at peace. The past 3 weeks have been some of the smoothest first three weeks of a streak I have ever had. No real struggle or temptations..

Then today I was on this streaming site (rabb.it) where we typically watch movies or binge TV shows. Never seen porn on it before, dont even think it's allowed so I never felt too uncomfortable on this site. Its really just a bunch of shows streaming and then a chat off to the side so you can chat while watching. Usually the most any video has at a time is around 50 people.

Anyways we were watching Harry Potter marathon when boom! No warning out of no where the user streaming just clicks over to a new tab with porn open and starts playing it! I was completely caught off guard. I didnt get a direct look, I couldnt even tell you who the pornstar was or the size of any of her "features".. Got a quick indirect glimpse of some up close penetration and immediately exited out without second thought.

I dont know how to feel about it. Am I responsible for putting myself in a sketchy situation by allowing another individual to control what im watching. Its hard to avoid these things sometimes. I wasnt really pulled in or anything, but it caught me off guard and I felt a quick rush. I think it was more adrenaline of being caught off guard than dopamine.

At the moment I dont think it warrants a counter reset.. This streak has been crystal clean (no edging, lusting over images or anything..). Thoughts? I feel sort of perplexed but I feel like thats what the addiction/porn wants me to feel so it can use the guilt to drag me back down.. I need some words of encouragement man, I'm disappointed honestly in myself but it felt unavoidable.