Being a 2.5yr banglorean male, i too faced the exact situation like you. I gave a great deal of thought regarding it ( atleast i feel so). I drew self conclusion that its mere confusion of minds w.r.t age. First why i gave a great deal of thought reg. this? Because i am constantly given signals from my freinds(girls) and colleagues(again girls) who are little or more of flamboyant type. I didn't restored for free/open sex though i stay alone in my 2BHK flat, single and charming, earn good bucks , the reason is my morale does not support that. My freinds(boys) simply would try me to have sex on the expence of their curosity/envy/idia to make me like them.
Flamboyant people think that they can carry history of pre/extra marital sex relationship history througout their life (with or without their spoces knowledge), but i am damn sure that they will hit the roadblock atleast one moment of their lives where they have to pay bigger price for their act of past (...may the block be even mental agony).
Don't confuse yourself as your questionaire is really appreciable and justifies that human relationship prevail/defined beyond sex.