Search Results: normal to get jealous

I work with young kids (5-6 years) and today I was talking with one of my workmates about how some students do not want to leave out sides and they seem jealous of other kids when we're talking to them. Then I mentioned that when I used to teach 13 year olds there would be some who used to fantasize and try to get my attention. He immediatly answered that in my case it's different especially with boys and he said that it is normal and obvious for them to act like that if I'm their teacher. When I asked him why he said that he remembers when he was their age he hardly ever used to go to class but there was this one particular young teacher that he used to go to all her classes just to look at her.

So what was he actually trying to say? Was he flirting?

So first up me and my boyfriend been together for 2 years
I know its normal for guys to look at other attractive women
And its normal for us girls to look at other attractive men too
But I do get jealous about it and he knows I get jealous and annoyed
Because I know there's hot girls at his gym and he admits there are fit, hot girls there but they are only good to look
(Hes never cheated on me tho)
And I told him there's hot guys at my gym as well

So today this was our conversation:
Him - there's these guys at the gym that think they have abs but they don't. They take their shirt off and you can see they have a belly instead. Wtf
Me - oh why would they do that?
Him - I don't know
Me - there's no guys at my gym that are like that.
Him - so you're saying the guys at your gym are hardcore?
Me - nah like they just focus on their workout. They dont show off like that
Him - ah ok. So you look at them huh?
Me - well yeah when im resting
Him - when you're resting huh? right

Does it seem like he may be jealous or nah?