I got into this new relationship

He's a control freak.
If you stay, he will end up traumatising you both emotionally and physically.

Get out as soon as you can. Leave your key and a note of goodbye: give the reason but phrase it politely.
Do it when he's not there.
Ensure that he cannot find you. That will probably mean changing your phone number. Tell your friends and relatives what's happening to ensure that they don't pass on your new address or contact details.

In future, on any first date learn to look out for the tell-tale signs of a control freak. If you see them, don't give personal contact details and don't agree to a second date.
If in doubt, look up the signs on blogs at Psychology Today.

This is a huge red flag.

Do it. That is some of the first signs of all types of abuse.

Sounds like he is more obsessed with you, that leads to tragic results. Dump him and don't look back. Nobody deserves to be treated shabby

Find a new boyfriend. Your current one is controlling obsessive and insecure.

You don't deserve to be abused. Ditch him

Sounds toxic. Get away from him quickly

Totally a jerk bag.

Pull your pants down and run around (keep underpants up no one needs to go to jail ffs) your front yard and yell my "My kookoo hurts! My kookoo hurts!" if he tries to grab you again scream dont touch me there that is my no no squareà and he'll leave you alone and keep his fucking hands to himself.. No one deserves to be bullied or controlled by another human being. I hope this helps. It may seem silly but I swear he'll think twice about putting his hands on you again