Is he obsessed with me?

I am A he is B. I would drop all other options for him. he's responsive to me but he's a bit more nonchalant than I am. I need to know if this could lead to a long term relationship/as into me as I am into him.

I am A he is B. I would drop all other options for him. he's responsive to me but he's a bit more nonchalant than I am. I need to know if this could lead to a long term relationship/as into me as I am into him.