I guess on love...
I was willing to adjust my everything, whatever it took to either please her or stay by her side. I was young and wasn't aware I was actually in love, so I think that makes sense. If I had the feeling she didn't like my t-shirt, I would never wear that one again (I remember this exact moment). If I felt like she disapproved of my behaviour at some point, I did my best to correct that behaviour and get her approval of doing that. I was willing to change my entire high school subjects package to a different one because I thought she chose that package. Someone once said I turned into a bitch around her - I guess that happened, too.
Don't think that will happen next time. I was very dependent of her because she was my first female friend in forever, as well as my bridge to other social interactions, and as a result of that got very attached to her, her opinion, her everything. Now, though I might rely on another person as a social clutch, I am not willing to change myself for somoene at all. So I'm not sure what I'd do actually.