High maintenance friend- let him go?

[danas]

So I have this friend, Jon.
He can be pretty high maintenance sometimes- I like him, he is a loyal friend but sometimes I just cant handle him.
He is also often very critical of me as well. Feeling he can say anything to me. Like he feels the need to put me down every once in while, very subtly. But more often he's nice and fun to be with.
I think he liked me once, but I never wanted to date him. He is 50. Cool guy, has plenty of success with woman, but I always knew not the type I wanna be in a relationship with.
Anyway- Now he is not speaking to me. And I dont know whether to just let him go or what

So heres what happened:
he often comes with me to events Im invited to. He's usually up for meeting new people, so I invite him.

Anyway thats how he met one of my friends- Tanya. She sent out a group email inviting people to her party.
I didnt know she invited him and had made plans to go with a girl friend of mine. I told the girl friend I'd meet her there. No problem she said.

Jon texted me on the party day that he wants to go with me, but I was late and didnt want to be pressured so I told him to meet me there too. He kept on texting me that he wants to go with me, that they arent his friends, and that should never ask him to come with me anywhere about 10 texts about going to the party. .
I just said when I was about to leave- "Im leaving now Ill meet you there." I didnt want to fight.
he was trying to give me a guilt trip and I was not giving in. Finally I arrived. i didnt find the host so I went around, with a guy I met in the elevator and we were searching for the host. I saw Jon in the corner of my eye, but I wanted to find the host first.
Then Jon appeared and said he was leaving. I asked why he didnt even answer and walked off. I tried to call him and text two days later, and a few days after that. but he doesnt answer. I feel bad because I know I hurt his feelings, but I just couldnt handle "taking care" of him that evening. I wanted to have a chilled out evening, without being responsible for anyone.
Especially after all those texts. Some not so nice.
My girlfriend showed up and we had a great time.

So what do you guys think? Was my behavior too mean?
Do I keep calling, send him a mail or let this friendship go?
Im leaning towards the latter now