I snooped on my partner
Why would you need to snoop if they are your partner?
I wanted to know if he was talking behind my back
It is not good to be spying on your partner. If you do not trust your partner enough to let them go out alone than you need to find out how to build trust in your relationship.
I hate it when people talk about me.  I don't give a shit on what they have to say, they are all stupid regardless.
I understand your frustration, but it is wrong to spy on your partner. They are not going to want to be with you if they think that you are never going to trust them.