Im bisexual but...

So ive been with this guy for a year already but lately I've been wanting to be with this girl...is it that im in this committed relationship that I'm not usually used to? I always used to mess around with 2 different girls before this relationship and i really want to go back to them but im so lost😪😫💔 i also get off easier with a girl than any guy ever. am i bisexual or really a Lesbian??? Helppp😫😫