I'm not an elder nor am I related to any (anymore, anyway)...
However, I was in this position myself a couple years ago and found this when researching the Society's writings about separation and divorce. The "God's Love" book (2008) says this:
In certain extreme situations, some Christians have decided to separate from or divorce a marriage mate even though that one has not committed fornication. In such a case, the Bible stipulates that the departing one “remain unmarried or else make up again.” (1 Corinthians 7:11) Such a Christian is not free to pursue a third party with a view to remarriage. (Matthew 5:32)
Consider here a few exceptional situations that some have viewed as a basis for separation.
Willful nonsupport. A family may become destitute, lacking the basic essentials of life, because the husband fails to provide for them, although being able to do so. The Bible states: “If anyone does not provide for . . . members of his household, he has disowned the faith and is worse than a person without faith.” (1 Timothy 5:8) If such a man refuses to change his ways, the wife would have to decide whether she needs to protect her welfare and that of her children by obtaining a legal separation. Of course, Christian elders should give careful consideration to an accusation that a Christian refuses to support his family. Refusal to care for one’s family may result in disfellowshipping.
Extreme physical abuse. An abusive spouse may act so violently that the abused mate’s health and even life are in danger. If the abusive spouse is a Christian, congregation elders should investigate the charges. Fits of anger and a practice of violent behavior are grounds fordisfellowshipping.—Galatians 5:19-21.
Absolute endangerment of spiritual life. A spouse may constantly try to make it impossible for the mate to pursue true worship or may even try to force that mate to break God’s commands in some way. In such a case, the threatened mate would have to decide whether the only way to “obey God as ruler rather than men” is to obtain a legal separation.—Acts 5:29.
In all cases involving such extreme situations as those just discussed, no one should put pressure on the innocent mate either to separate or to stay with the other. While spiritually mature friends and elders may offer support and Bible-based counsel, they cannot know all the details of what goes on between a husband and a wife. Only Jehovah can see that. Of course, a Christian wife would not be honoring God or the marriage arrangement if she exaggerated the seriousness of her domestic problems just to live separately from her husband, or vice versa. Jehovah is aware of any scheming behind a separation, no matter how one may try to hide it. Indeed, “all things are naked and openly exposed to the eyes of him with whom we have an accounting.” (Hebrews 4:13) But if an extremely dangerous situation persists, no one should criticize a Christian who, as a last resort, chooses to separate. In the final analysis, “we shall all stand before the judgment seat of God.”—Romans 14:10-12.
The bolded and underlined part is of interest. I take this to mean that elders cannot encourage your wife one way or the other as to what she SHOULD do...however, I've known of people who were coerced to decide something through "scriptural counsel". I guess it all depends on her CBOE and what type they are...