Advice please

Right so I’m 20 I’ve always been a party girl and never had anything serious with anyone I think I’m also scared of getting into anything serious... but about 2 months ago I met this guy , we got along well and I did fancy him, he treats me so well too!!

So basically we saw each other loads alcohol was usually involved and we went on 3 dates but then after the 3rd date I suddenly just found myself not liking him (I’ve not even slept with him) anymore like I’d done a whole 180 ??? I then called it off with him the following day ....

However since calling it off I do find myself thinking about him and if his with other girls I do get jealous , we’ve been messaging still a little bit???

Do you think I actually like him? Do I give it another shot? Please help😪