Wow. 13 years. Husband is cold; has he been watching the news lately at all. Imo, there's some mental control gamesmanship taking place. He the husband was able to petition her for K1 through USCIS and was engaged with the process all the way through her interview at the consulate to get the visa. So this isn't something new to him so why he's been holding her LPR status hostage for this long is beyond disbelief. Unfortunately, she'll need him to be engaged in the process again to see this through. All she needs at this point at most is his I-864 affidavit support form. The rest she can handle herself. Ask her to join. This is very sad because she would already have been a USC by now (if she wanted).