is she into me or not???

ok…well I like this girl. I work with her but we hardly every work at the same time and we dont go to the same school so I hardly talk to her in person… about a week ago I was walkin home from school and I walk by my work to get home and she was workin. she was on break at the time and so we talked for a little while and she seemed all flirty and intrested in me. so I asked her for her number so that I cold txt her latter. but now when we txt each other she dosent seem that interested in me anymore. what dose this mean???