Deanonymization, what's wrong?

Question

Computer networks

Maybe someone knows how my network is wiretapped, I have a computer and a laptop behind my router, snort vpnbook+tor_debian+tor_browser-Internet is on my computer. The VPN is free and you can just copy and paste its certificates into etercap and listen to everything I type, but who can see this tunnel except the provider? Behind the route, I cannot see the damage to arp packets for traffic redirection. what to do and what options you can try to protect and quickly identify wiretapping? I corresponded on a dating site and somehow my neighbor got all the correspondence. Site without https, what am I doing wrong?