How do you get a 12 year old boy to fall in love with a 11 year old girl?

you cant it is their choice to fall in love.

A lot of the ideas that people have about love involves lust or sexual attraction to start of with. sot to get a young boy to fall victim to sexual attraction he would first have to have started puberty which means that he would have the hormones present in his system that give him or her for that matter these overpowering feelings. If he is old enough to have these he still needs to be in a position where he can do something about those feelings because love in the long run may start with physical attraction however for it to be worth anything more then a cheap thrill it needs to run a lot deeper.