I like a female and a guy

Ok... So I've been in relationships with females before, but now I'm talking to a guy. He's wonderful in every since of the word, but we're in a long distance relationship if that's what you want to call it. Anyways, I work with this female and we've been talking for a little while and I'm very attracted to her, and I feel myself wanting more with her... Should I let her go and be with him or what?? So confused 😔 thoughts??