<human>: Can you give me a shortened version of the text?

I was with my ex, (James, 27M) for just under 3 years. We broke up at the start of 2015 and I started dating my current boyfriend, Cory (24M) in May. 

A couple months after Cory and I started dating, James started sending me random texts just to chat. Cory was upset about us talking, so I stopped texting James and blocked him on Facebook and all other social media. James got the hint when I blocked him and I didn't hear from him for awhile.

Today, James texted me saying something like 'I know you don't want to talk to me, but...' And proceeded to tell me something funny about someone we know. Now, there's a convention this weekend that me and Cory were planning to attend. I had a feeling James would be going too, so I asked him if he was, and he said yes.

So, should I tell James about Cory, just in case we see each other there? The thing is that James is kind of volatile (a big reason why were not together anymore). Hes the type that flips out when he's pissed off and doesn't care if he makes a scene. So on one hand, I think it might be a good idea to tell him in advance because I'm worried hell do something stupid if he sees me there with Cory. On the other hand, I think it might be better to just let it be.
<bot>: I'm going to a convention this weekend with my current BF. My ex will also be there. Should I tell my ex that I'll be there with my new BF?