Stranded in Time

Pondering the night before,  the breakup with her boyfriend and why she is so hungover, Karen gets a call on her cell phone from a person claiming to be a stranded Time Traveler and that Karen's misery was aided by the Time Traveler, and is the only one who can explain all the things that happened. Including changes to her physical makeup. Her life take a turn for the better and Karen soon has put her ex -boyfriend and their break up out of her mind.
Mainly because her sex life has taken a dramatic turn for the better though even to Karen the things that have happened are a little depraved. Time passes and no word from the mysterious Time Traveler, and Karen resigns herself to enjoy her good fortune and not ask too many questions. That is until she meets exotic Lena.