life's too short mate. go for it. she had probably had a drink to pluck up the courage to text and therefore put "love" instead of fancy. plus, i think you can kind of fall in love with someone when you work with them (as in the type of "love" when you've been on a few dates and think this might be the one but your not yet sure i.e.fancy the pants off). and she's been descent enough not to interfere whilst you had a girlfriend, so i think she's probably not a stalker.