Was It Wrong Of Me To Do This?!

At First It Wasn't Planned Out But...

Me and my friend A***** met at lunch and so instead of waiting for our other friend, who I suspected was stuck in Biology, we went straight to the lunch line. Well our other friend M******* wasn't in Biology, she was actually located in the other line. When she passed by, A***** said "Let's hide!" It was just a joke at first, but then we thought we could use this to our advantage. M****** is always using us for our homework, so we decided, "Let's not go with her and see how she deals with her homework herself."She even saw us and we ran away. That happened so when I went to English I thought she'd just laugh it off, no big deal, right? WRONG! She was mad at me and didn't even talk or look at me the whole period. When we had to get into groups, I thought that she'd have to talk to me since I was the only friend that was near her, but no she went for two people she absolutely hated and when A** said, "Well what about Lovely (my real name, not Lovely, but you get what I mean?" M******* shrugged and said, "Whatever." B***** obviously acknowledged me, we even talked about our obsession with black lipstick, but even so, M******* would not dare turn back to even look at me once and when she had to get something out of her backpack she would stare directly to the side as to not make eye-contact. I just hope she isn't butt hurt about it, because that wasn't wrong of me. At least, I don't think so. I even asked for my other friends opinion and he said it wasn't wrong of me to do, that that's what she deserved if she truly was asking for our homework everyday.