So my question is why would she do this?
Most Helpful Girl
I think V-day is a common day to reminisce and old lovers cross your mind. It is also a time some ladies are feeling romantic and wistful... Even old and potentially hurtful memories can be seen in a romantic light.
I have a ten year ex, a 6 month ex after him, and a never-dated one who got away type of ex and all three of them crossed my mind, although I was able to avoid stirring up their lives and making any passive advances. Then again I really don't want to have any of them back(but appreciate what I once loved about them), maybe your ex still has some desire to rekindle something.