Muffet headcanons:
Bi (as you can tell)
Probably has at least one black market gig
Dosent like mettaton at all
Would most definitely be spamton's roomate
Can technically survive snowdon be she wouldn't like it
Also it's not necessarily metta who offered her money, this person was discribed as "changing forms" witch mtt doesn't do untill the ex/neo fight, gaster is unlikely but plausible, flowey MIGHT work for that but idk