I was talking to a regular customer yesterday (I have known him for four months and see him 2-3 times a week) when all of a sudden... BAM - I went all weak at the knees 
We were discussing a problem and it was as if a cloud of pheromones just erupted from him and rained down on me 
I haven't stopped thinking about him since and am getting very flustered as I know I'll be seeing him tomorrow, albeit for ten minutes or so.
For context, I'm 45 (single) and he's 15-20 years older and in very good shape 
I've no idea if he's married, single, widowed or divorced; obviously hoping not the first.
Why does this happen though? I'm thinking it's due to a pre-menopausal rush of hormones or a sudden rise in temperature (I live abroad), both of which can make people feel very erm, 'romantic' 
Please give me a virtual slap/pat on the head and tell me about your pathetic crushes