Am i being ually hared by a woman?

My wife has gone out of station for her company ignment and on knowing this a female colleague of mine(she is 24 and am 33) who always used to flirt with me is asking me to come and spend time with her and sometimes sending lewd text messages.I m not interested and explained my position but she never bothers to stop and last night she sent a msg saying "be like a man and u ll regret later for missing this chance".What should i do about this girl