I need help please ladies.

There is this girl at work. I like her but she has a bf .

1) I caught her looking at me few times.

2) She has caught me looking after few times

3) We speak , we text on a computer chat but I have to text first and she most often gives me short answers but if I ask something cool then she will elaborate more.

4) She use to joke around flirt a lot but only directly to me like in company of other people without them noticing. But never over texts.

But today I think I blew it because I texted her little too much over this PC instant messenger about random stuff but nothing related to me liking her (if you know what I mean) . I think that she knows now for certain I'm into her. Now immediately after this happened(texting on instant messenger) she started to ignore me for the rest of the day. I know tomorrow she will do the same.

What do I do?

Remember she has a bf.

Also do you think she likes me ? I don't want break up her relationship but maybe one day if she breaks it off with him she will remember me.