is it weird to get flustered around my friend

ok istg I'm not weird but today she fucking touched my tit. she went "I can see your bra" even though she couldn't and she put her finger on it. and we lit got changed tg. and she keeps asking me to smell her and she kinda pulls my head towards her neck. I can't even make eye contact anymore. she keeps coming up from behind me and wrapping her arm around me. am I being weird, is this like normally girl behavior