Common for young boys / girls to have crush on their
teachers.
like u say u like kristen kreuk and since she look like her, u
start to idolise her lor. cos u know kristen is off ur limits, so u
go for the nearest version of her.
crush can turn into infatuation, rarely love. cos u admire her
pyshical appearance only. if one day she turn into Xu Chun Mei will
u still "love" her?