I'm Confused My Stepson said He Will Marry Me When He Gets Older

 

I have had a close relationship with my stepson, my name is anitha jones and funny enough my story is the most confusing.

Me and my stepson have been living together for more that two years, he never seemed like he had a problem with me.

However issues arose when he once told me something i had not expected from him, we were just at home me and him when he introduced the topic of marriage.

And surprisingly enough he said his wish is to marry me and he will fullfill it at all costs i did  not really know what to say to him but i was flattered and everything however i cannot marry my stepson but maybe you can advice me. What do i do?