I know she's at work on Mondays, and it's kinda weird that this is the only day that she think about me.
Most Helpful Girl
I think she might be emotionally unstable, and if she's your ex, there's a reason for it. No one likes to be used and texting you when it's convenient for her and abusing your emotions is not cool and I would never let someone get away with that. I'm guessing that on Mondays, she's either lonely or bored or both. I'd personally ignore her and stay away. She'll get the hint eventually. She sounds like trouble.