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This sounds incredibly stupid. In fact, I think this whole situation is stupid but my friend has been making me feel bad about it so I started wondering.

For a little more context: My Friend and I are taking part in a school trip to Berlin in a week. She has told me she has just bought a Polaroid to bring to take photos. Not a bad idea. However, not an original one either. It's something a 5 year old could think of. Since I own a Polaroid myself (and have had it for many years), I mentioned it to my friend and said that we could both do it and maybe even match. Would have been okay if she'd just wanted to take pictures individually. I would mind my business too then.

The concept of bringing a camera is also something I have been thinking about before that. I didn't mention that yet, though. She then said I was "copying" her for wanting to bring MY camera I have had for years and have brought to trips I've taken before (not ones with her but you get the point). And every time I didn't bring it i regretted her so I definitely thought about brining it before.

Now, I personally don't think bringing a camera too is an issue at all. Taking a camera to a trip is a default idea and not something quirky and original to me. That's why her negative reaction weirded me out. Her reaction seems just really "I need to be the only special and quirky one" like and I hate that attitude. Her reaction made me wonder if I am the Asshole. Am I not considerate enough or am I really unknowingly copying? Because I don't see any problem of bringing a camera I've had for years to a trip I've been anticipating for months even if i only recalled the memory of the idea when she brought it up.

Edit: I removed the Info about the Homework and Teacher because these just seem petty or not too important. I don't want to bring any outside Info to this because she obviously has a right to still have some privacy imo and I didn’t need to add petty extra Info that doesn’t help the case.

I'll probably talk it out with her later. She is unaware that I for example regret not having brought it to previous trips and generally planned to bring it to my next trip. Also, I think she is less pissed because she asked me which one I owned and I think that's a sign of accepting it? Probably she just misunderstood my Statement and will hopefully be understanding when I tell her more context. My annoyance in the heat of the moment probably made me dramatise it a bit.