in need of some advice

So this guy I liked early in the year rejected me when I liked him. We snapchat but don’t talk much now, and all of a sudden he wants to hangout and really likes me, but also said he isn’t looking for anything serious. It concerns me a little that this is all after I posted some bikini pics, again we don’t talk much, and he said he’s not looking for anything serious. I don’t know if the feelings are still there or not for me because this is all pretty new. Should I be concerned about his intentions or am I overreacting?