Why do I feel this way helpppp

Hi I’m 18F and I like girls and guys sexually but I feel like I would only want to be in a relationship/romantic with a girl.Whenever a guy hits me up or talks to me irl and I can tell he likes me I get so distant and weird even if they’re attractive I just immediately run away.But I do like them sexually and although I’ve never been in a relationship with a guy I can easily imagine myself with a girl.Am I considered a bisexual still? I’m just confused with my feelings and I’m still discovering more about my identity so idk yet.