Seeing this guy this guy since August but I’m not comfortable with him staring at other women while with me?

Anonymous
So yesterday would be our fourth or fifth date and he had to get money out for rent and he was reversing back into a car space and there was three girls walking towards the car and he just was staring at them the whole time they were walking by and then when they walk by he turns and asks me for a kiss I was bit hurt over this but I did kiss him.
Am I over reacting here?
Also he likes loads of girls photos on instagram.
This guy is all about me and acts like he’s my boyfriend but just im afraid of getting hurt.
He’s really nice and all but I don’t like him looking at other girls while with me.
Even at dinner he was showing me this girl on instagram and I seen he was liking all her pictures.
I just don’t know how to feel any advice?
Seeing this guy this guy since August but I’m not comfortable with him staring at other women while with me?
3 Opinion