How often do you find yourself infatuated with a guy / girl?

By that I mean you have really strong feelings (butterflies in stomach, heart sinks etc.) , you think they're very physically attractive, and they seem nice and cool, but you haven't really ever talked to them besides basic greetings. there's just "something different" about them. State your age please if anonymous.
Once a month
Once every few months
Once a year
Once every few years
Other
Select gender and age to cast your vote:
Updates
+1 y
Please also say if you would date someone that you didn't have a crush on first.
Updates
+1 y
Can you guy answer this one by too:

girlsaskguys. com/dating/q2218837-girls-mainly-i-like-a-girl-her-sister-what-do-i-do

How often do you find yourself infatuated with a guy / girl?
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