After Rigspelt break up (Hightower's ultimatum, Grace's decision) do they get back together??

but Fiona, eventually they are gonna run outta ideas. i mean, how on earth can they get back together? its against the rules, and hightower has told them whats going to happen if they continue a relationship. now unless the new AG is like a family member, or good friends with rigsby, then there is no other way grace will break the rules. i cant see them getting back together any time soon