so normally im in that position! im the person, who ghosts everyone around them. (and now diagnosed with bipolar i finally understand more why it happens)
so one thing is that we need to take accountability. its not okay of us to just ghost and then not try to figure out, what we can do so it doesnt happen again, or is less severe. his bipolar does not excuse him ghosting you. it may be an explanation, but he still needs to hold the accountability! so him doing this is not okay!
so for me how i deal with is that i first tell people very directly that i have this problem. sometimes i get overwhelmed and then isolate myself and struggle to come out of it. i explain what it means and how whne im not replying its really fully because of myself, and not the other person.
with a partner (or whoever) its so important to talk about it when you are still okay. i dont want the people to worry about it and i want them to still feel loved, appreciated and everything. it needs to be a compromise, how can we make this so you and me are okay with it?
and did you talk about this beforehand? does he know how much it affects you? what does he do to change it?
and for him its so important to work on it! luckily medication helped me lots, i only have these phases in a depressive episode and now i still ghost, but not the people close to me and its less severe, shorter and im able to work through the shame to reply again.
i have active therapy and also have general check-ups with my partner. how do i feel? how is my mood lately? journaling helps me personally to find the courage to text people again.
and tbh i dont understand exactly why youre not able to go to his place or ask family? especially through family it was a way for me to tell people that im okay. it doesnt feel okay in the moment tbh but afterwards i do agree with it because how else are they able to know that im okay and will be back at some point?
also it did help me once that my friends visited me when i was in that phase. i hated it in the moment, i felt so much shame and just didnt feel good, but it showed me how much they care, that they werent mad and just were worried.
okay im gonna stop here now! i hope something i said can help!
tho i do need to say this is my experience and it might be very different for him, that why talking when hes good is so important!