Every once and awhile, a item will appear on my wishlist even though I didnt deliberately add it. Its always been things Ive looked at, though.

For example, I just looked at the hover previews for the new Purple Heart line in the news page, and one of them ended up on my wishlist.

Am I accidentally doing something, or is this a bug?

There's a little + sign that shows up on hovering, maybe you're clicking that?

Ah, thats definitely it! Thank you :)