What would you do if your ex contacted you and she wants to hurt your relationship with your wife

I would definitely tell my wife about it...but I would do what I did the first time she tried that. When my wife and I first got together, she went to my wife to "warn" her about me. There was nothing to warn about, she just couldn't stand that I had found someone and the person I found was a former friend of hers. Anyway, when my wife (girlfriend at the time) told me about it, I went directly to her and gave her down the road. I told her she had ruined my life once already and that I'd be damned if I was going to allow her to do that again. I basically told her to stay away from my girlfriend or there would be hell to pay....never had any problems with her since.

Ignore her and speak to my spouse about it!

Both

I dont have an ex gf or a current wife but if my ex wanted to sabotage my relationship it wouldn't work, my partner and myself would just laugh and walk away, I dont date idiots

Talk to her, she obviously wants and needs attention.. But never any worries about her hurting my present relationship.. My partner knows all about her..

I’d troll her AND laugh about it with my wife

My partner is jealous and would likely feel really uncomfortable if I spoke to them and at the end of the day it has no purpose in your marriage so I'd respond to them once and let my partner know and that's it.