is it possible for him to be smitten in 7 days?

knew a guy at work as an acquaintance for 6 months... 7 days ago after a function we went home together.... everyday he texts me... tells me how much he like me... took me on 2 amazing dates.... tells everyone how lovely i am..walks past me at work lol.... just via text he told me hes embarrased how smitten he is... i am too but scared... is this possible