Getting stalker = good!
VPN provider logging = bad!
Have a VPN connection at your router to one VPN provider and using a Pi or virtual machines with Tor/Whonix to tunnel through that (so no Tor IP's seen by ISP's) and finally VPN to a different VPN provider though that double tunnel. No Tor exit node to sniff your traffic and no way to link up ip's unless you login to something which keep slogs, such as email providers. Used to be slow but not so much these days with all the good routes and servers.
As for pointing out he had a Protonmail account, if that is a sign of guilt, I must be guilty too!
PureVPN is going to suffer from this in the same way HideMyAss did after they did the same.