if he isnt jealous does that mean hes not interested?

[b]

we've known each other over two years and been together as a couple over 17 mths. i get jealous when he talks to a female and he got mad when i thought he wanted to try to get close to a female at a place he boards at. but he wanted her to know what he was like before ppl started spreading lies about him. hes not liked by many ppl and has only one friend other than me. but she ignored him and blocked him from her facebook page (much to my relief) the thought of those two communicating made me squirm w jealousy.
im trying to calm it down but i feel twinges of insecurity and jealousy everytime he looks at porn or theres a nice looking female nearby. he says he loves me and he gets annoyed when i dont trust him even tho i say i do.
The thing is i dont think he gets jealous of me. i have made up stories about guys i have talked to or even told him about guys that have hit on me on facebook (which are true) but i get the lukewarm responses like mayb they are gaming friends or just saying hello.
it makes me wonder if i am not hot to him and if i ever will make him jealous.
he did have only one gf who cheated on him. idk if he was jealous w her.
i would like him to be a little jealous i mean i have even played up a lot past encounters to try to get a reaction. why doesnt he react? is he losing interest me? does he not care?