I don't think being in a polyamorous situation could fix your relationship, how about you break up with your toxic fuck buddy and we start entering therapy session instead?
And if tsubaki wakes up in the hospital and finds kabu in a coma but when he get the chance to talk to kabu after waking up from a coma and kabu doesn't have any memory with tsubaki? OH GODDDDD IM SCARED FOR THE NEXT CHAPTER!!!
when I get my hands on you myeongsu istg you'll regret it