Messy break up

[Lm4065]

I broke up with my ex a few months ago because she cheated. A couple of her friends know about this. I know one of her friends through a work event. We exchanged instagram at the time (this was when I was still with my ex). She is now messaging me fairly frequently long voice notes talking about her life what she is up to, tv shows we both watch and analysing dating and past relationships. She isn’t close with my ex anymore and they have drifted and don’t speak really.
at first I’ll admit I was flattered especially after the cheating ex which I’m not proud of.
she has suggested we move the chats to WhatsApp and gave me her number. I thought about it and felt a but guilty but messaged her a couple of days later. She has now left me on read for days. Wondering what’s going on and feeling awkward as I may run into her in the future through the work thing.
is she interested but hesitant or just playing games with me?

How long were you with your ex? I'm guessing they're no children involved and you have no property or financial ties to each other? I personally wouldn't involve myself with a friend of my ex partner. It's way too much hassle. There are plenty of single women out there, without the need to go down this road. I'm sure your self-esteem has taken a beating, that's to be expected, as you were cheated on, so it's not surprising you were flattered by the attention.

You've WhatsApp this woman, and she's not replied. It may be that she's realised that getting involved with her friend's ex is a mistake. Who knows. I wouldn't waste your time and energy trying to analyse her motives. Don't send any further messages. Forget about her, and move on.

We were together a year. I suspected she had a crush and was trying to hide it during our relationship but I only saw her briefly a few times.
no children or property or finances shared.
ive not met anyone I’ve got on so well with so quickly, I don’t think ever. So it is playing on my mind. She checked with my ex before making contact with me after the break up and she gave the green light. My ex has confirmed this to me so I know it’s not a lie.