Ok, so bad news first: you're going to have to communicate with him. Good news: you can (and should) do it over email rather than phone conversations.

Compose (but don't yet send) an email letting him know that while your feelings are hurt you respect the fact that this is the end of the relationship and that you accept that. Let him know that you're not going to go stalker on him. Explain to him that while the relationship is now over you did at one time have an intimacy that caused you to share personal information that you would not otherwise have shared, and make sure he understands that it's important to you that he behaves as a gentleman and does not break that confidence. Don't threaten, but remind him that you'd like to be friends sometime in the future and that you'd have a hard time remembering warmly someone who treated your intimate confessions with callous disregard.

Do not avoid the topic of social events. Let him know that while you would like to be friends eventually it would probably be easier for both of you if you attended separate events for a while. Ask him which are important to him, and whether he'd be willing to trade off events with you for the next couple of months while you both take some time to recuperate. Let him know that outside of communication for social scheduling you'd rather not hear from him for a few months. Ask that he not call or text you for the next three months, promise to do the same, and offer to have a talk after three months to see where things stand and how you both feel about moving forward.

After you compose the mail, save the draft but don't send it. Come back to it the next day and read it from top to bottom, and edit it to remove the parts that sound combative, needy, or wheedling. You may want to take this step a few times. Don't send the mail till you can open it, read the whole thing, and not find something cringe-worthy.

Depending how much you trust him you might also want to approach a mutual friend (or friends) who has both of your respect and is hopefully also a respected member of the community. Explain to the person that while you don't need any particular intervention you would value having a witness or two to the communication, and ask if he/she/they would be willing to be Ccd on the mail that you send. If you can find a person (or people) who are willing to do that and who are well respected in the community then it will put him in a position of needing to negotiate in better faith and stick more closely to the deals he makes with you to avoid losing standing in the eyes of the witnesses. They will then also, presumably, see that you are handling things in a mature way and be able to counter any social allegations he makes in the future of harassment. This method may make it more difficult to be friends with him in the future, but having a respected witness or two might go a long way to preventing future flare-ups or unnecessary damage to either of your reputations.

Don't send him text messages. Don't call him. Don't meet him face to face. Always work through email, and always take time to cool down and to edit before you send responses.