Can someone explain what kind of sickness seme have?

he cant live without juheon bc he is marked by him

You mean seme was marked by uke right?

I thought only alpha can mark.

mhm

in some omegaverses yes thats the case, in others like the one we are reading rn omegas mark the alphas and omegas cannot be marked

Thanks guys.

If they get married and have sex again, can he be healed?

nope it permeate. but the omgea can mark other people.

permeant*