Meigh can't do the whole divorce in absentia thing because you have to prove to the court you've made every effort to contact your spouse. This includes documented "diligent efforts" followed by a court-approved alternative service which requires a sworn affidavit, although if Ralph is refusing to disclose his address which prevents personal service, his deliberate refusal could potentially be classed as some sort of evidence that strengthens the case. It could be a matter of proving that you want a divorce but him being uncooperative by not disclosing his address. Getting a default judgment has a lot of hoops and is difficult.
Ralph brought this upon himself fleeing in secrecy to prevent being served any sort of legal documentation because he's a BISH. He'll be married to Pantsu forever and won't be able to elope with his porn star queen.
Bigamy is an interesting arc, though. Very on brand