Well let it dawn on him gradually
Why not ask him 'out' something like theatre/dinner? Have a good vibe about this! close proximity, shared history, nice dress, perfume etc ... men can be SO dozy, he probably couldn't believe his luck for more, hence thinking of you as friend ... a few veiled hints in order poss! oh I am quite excited for you. Even feeling 'phwoarr' again is a bloody good sign, tho. I feel like I'm invisible atm, and I just know modicum of sex would make all the difference, sod the skin cream etc, but seem to prefer TV dinners in a kind of self perpetuating monasticism