So I have been friends with this girl from work for a year or so. We have slept together before but only after nights out whee we was both drunk. She flirts with me when in person, giving me compliments and generally seems really interested in me. Even our friends say there is sexual tension between us. But when I asked her on a date (over text) she made up an excuse to why she couldn’t go on a date with me. Does this girl like me or not? What should I do next?