This depends on the release terms set by the case manager. If your sentence is over two years, there is likely to be some halfway house. The counselors in the halfway house are motivated to send residents for home confinement as soon as they meet some minimum requirements like a safe place to live, a job to go to and the promise to avoid known felons while on probation, 

If he violated and only got 90 days, he's lucky. Violators usually have to serve their time in the jurisdiction they were sentenced.

This is in the hands of the original sentencing judge. If there is a REALLY good reason, he might get another chance.

TWO violations! It sounds like he's not learned how to enjoy his freedom. The problem here is that probation violators are at risk because the judge can always revert to the full original sentence - anything less than that would be considered a win for your fiance.

yes, that is very likely under those circumstances

He would have to have a suitable residence and job awaiting him outside of Arkansas if he wants to do his parole time out-of-state.

They can hold an offender for as long as the end of the original sentence imposed. Probation violations are problematic for the violator as they fall under the jurisdiction of the "sentencing judge" who is usually not too pleased to see that their earlier generosity and leniency were not appreciated as evidence by their re-incarceration.  

they could break rules and not necessarily get an associated charge which would delay or effectively negate a parole hearing

The US Parole Commission used the Salient Factor Score to assess a federal inmate's odds of a favorable outcome upon release. Parole no longer exists in federal law. But, the instrument contained seven items: prior convictions, prior commitments, age at first commitment, whether the commitment offense involved auto theft or checks, whether parole had ever been revoked or the inmate is a probation violator, history of opiate dependence, and verified employment or full-time school attendance for at least 6 months during

Parole is offered in the Sentencing Memorandum by the Judge. Are you sure he is eligible? How long has he served? Usually, parole hearings begin at 1/3 of the served time. If you are not certain, you can contact the Clerk of the Court and request his sentencing document signed by the Judge. If he is eligible, it is up to the Warden in his facility as to when a hearing will be scheduled.