Ben isn’t trustworthy and doesn’t take responsibility for his own actions (including not believing he did anything wrong), so unless you would have been happy with a super casual relationship, no contact is best, for now at least. It will hurt, but the hurt gets less as time goes on, even if it doesn’t feel that way right now
As for new hobbies, is there anything you want to try or did in the past that you enjoyed? I’m considering taking up archery again and have recently got back into painting.