<human>: My BF and I met on an online game 7 years ago. We've been together for almost 3. Recently he's been making cozy friends with a female on the online game we currently play. He doesn't seem to hide any conversations they have in chat, by they chat what seems like all the time. Like every evening when we're online.
My reasons for this upsetting me is that's how we got together was becoming good friends online, and we both have a history of cheating in prior relationships.

They never chat in public channels like guild, public, or party. It's always whispers and they don't seem to interact at all outside of those means. Our guild knows me and him are in a relationship, so it almost makes me think it's purposefully hiding it.
He hasn't made friends with anyone, male or female, like this since we've been together and played other games.

My BF is actually obsessed with this game. He stays up late to play, gets up early to play before work. When I try to talk to him he's always distracted typing to someone and I have to repeat myself. He is almost always typing and chatting to people. It's basically a chat room with a game included to him. Sometimes he snaps at me over dumb things while he's playing, which isn't normal.

They're on a first name basis. I do not know the names of ANYONe in my guild I've been with for months. You only find out a first name if you ask, or if they tell. And why even do that?

I DO NOT have a history of jealousy in relationships. These are very new feelings for me.

Anyway. Give it to me straight. Am I understandably jealous? Or being paranoid?

Can you give me a shortened version of the text?
<bot>: Is my boyfriends new online friendship making me overly jealous, or understandably so? First name basis, constant chatting with her, just like how we got started.