My cousin...

When i was about 5-6 i think..its a fuzzy memory me and my cousin would play games mind you she is 4 years older than me im pretty sure there was this one game we would play called vampires but (TW) idk if she made me or if it was "apart of the game" but i would kiss her neck or her lips or she would to me i remember not liking it but thinking it was all in the game and being weirded out but now as im older its making me scared. recently i visited my family for easter and i saw her and i was terrified of talking to her i was trying my best to steer clear but she just wanted to hang out i dont know if im being paranoid or not but now as im thinking about it im confused and scared so..please help