I do not find jelousy to be a constructive feeling. Being myself, I have lots of male pals, so if I do not do anything with them, I must assume it can be the same for the person I am with. Jelous partner would make my life harder and prevent me from achieving what I want to achieve which is expanding my social circle all the time, filling it with new possibilities for fun.
When I get jelous (rarely but it happens), then it gets serious. I make sure the other person has no idea and suspects nothing and then I go all SWAT on them gathering necessary evidence. I do not want to torment myself with all the crazy and toxic feelings, so I tend to resolve the matter as quickly as possible - I wanna know, not suspect.