Having A Crush On My Gynecologist...

I think I have some kind of crush on my current OB gyn doctor.
I only went on him for a few times,I know about him for a really long time he is one of the best gynecologist of my country(I live in Albania)
He is really warm and kind and doesn't make me feel uncomfortable at all.
Between us is an age gap of almost 15 years, but it really doesn't matter for me at all, he is really charming and a really good person, his wife passed away 10 years ago l, cancer killed her and he never remarried.
I am a medical nurse and now studying for medical school I am not married or having a boyfriend as well, sometimes I can't even focus for exams, sometimes I am only thinking about this man.
He doesn't know I have feelings for him it would be akward to tell him, I just that my passiom for my doctor will only remain a beautiful fantasy.