Partner Manic while I'm Overseas
For context, we're both in our late 20s and have been together for 10 years. He's diagnosed bipolar and unmedicated, but has only been manic once or twice over the course of our relationship. Last time it happened, we were on vacation together, and it seemed to clear up within a few hours.
I left for a grad school course trip last week, and over the past two days, my partner has been showing what I think are signs of mania. This is the first time I've ever been away without him.
He's completely fixated on this idea of me having a "life changing journey" without him. He's apparently told everyone I'm on a "dangerous research expedition" but in reality I'm "just on vacation". He's told me that he feels "decieved" and "gaslit" about the contents of my trip, and calls me "overprivileged" due to the fact that the trip is being funded by my school. I'm not being "transparent about what's really going on". I have no idea where this is coming from.
Before I left I gave him multiple chances to tell me that he wanted me to stay home. I went through the itinerary with him, and he was aware of what the course is called and what I'd be doing day to day. He's now telling me that this isn't true. That I mislead him, that I deceived him, that I've left him behind to have an amazing vacation without him.
Last night he told me, "you will have to deal with your reality when you get back". When I asked him what that meant he ignored me and steered the conversation back to my "absurd privilege".
He's acting completely out of character. He doesn't speak to me like this. I can't be sure that it's mania because I'm not physically there with him. All he's been willing to tell me is that he's sick, hasn't been sleeping well, has been doing a lot of school work, and has been over a lot of stress over the last few months. This has been the case many times before without triggering any mania, so I'm not sure if maybe he's stable and I actually did do something wrong. Besides the extreme anger directed towards me, he doesn't seem to be doing any of the classically manic things. I've considered reaching out to his mom, but I don't want to make things worse.
Sorry for the ramble, my stomach has been in knots with anxiety over this. I can't focus on enjoying my trip. I feel like he's going to break up with me and I'm not even sure what I did wrong here.
Do I ignore him? Do I fly back early? How can I deal with this from so far away?