Hi tsmall--
So much in this chart depends upon the state of play of the marriage. "Will we divorce", with the VOC moon suggesting the matter is essentially resolved, reads one way if the divorce is already filed and she's just waiting for the paperwork; vs. if the couple are just in a rough patch and she hopes the marriage will succeed. With quesited Mars in the querent's 11th house of hopes and wishes for the future, I would take it that she feels the latter.
Re: considerations before judgment: I've not advanced to the level of checking planetary hours, so hopefully this isn't in play here. I assumed that the couple might be struggling, but that the querent (she?) probably didn't want a divorce if the marriage could be saved, which would usually look like hubby making some major adjustments. But actually, maybe with a divorce question the querent wants it to happen.
I'm looking at Lehman's book on horary, and she deals with considerations by quoting Lilly and Gadbury. The latter says that Saturn in the first can indicate the question is invalid, perhaps due to some type of lie in the question, or that the situation is "past all hope": but only if certain conditions apply that don't seem to be the case here. Saturn is exalted in Libra, which is a vote for the chart's radicality.
But then we run into conflicting testimonies, as he also warns against judgment with retrograde lord of the 7th, which we do see here. However, his reason seems to be that the astrologer will show up badly.
Saturn in the first here seems like a reasonable description of the situation: the prospect of ending a marriage in a deep state of disappointment. Lehman says that the "lying" possibility is tricky: I suggested the husband might be cheating, and you said, "not quite"-- Lehman mentions the Monica Lewinsky case where Bill Clinton essentially twisted the definition of a sexual relationship to suit his purposes. Perhaps hubby is sexually monogamous, but spending all his time with his pals (her 11th) or on some type of amusement (his 5th.)
Also, since Mars represents the husband, I viewed retrograde Mars as indicating that he is reconsidering his relationship with his wife (Venus.) He's got some minor dignity and is in a good house, but Venus looks so much stronger than Mars.
In natal charts, close relationships between Jupiter, Mars, and Venus can indicate polyamory-- either by the native or her spouse/partner. However, Mars in the 5th from the 7th could be his house of children as well as of love affairs. Possibly he is considering the children, if they have any.
With regard to reception in the trine, Mars picks up Venus's terms and face. I don't think he wants to finish with her.
I also considered the possibility that the wife might be cheating on the husband. If we look at her 5th house, we get a Saturn rulership, which maybe just might have come back to bite her in the first house. The sun in this house could suggest another man in her life. But with the signifier of the 7th in his own house of love affairs, I thought it more likely that hubby was up to something.
It is possible that the sun in the 5th symbolizes children in the relationship.
To say that "Venus is hurting" is my own take on divorce, but I considered Saturn in the first house, and Venus in a house that deals with divorce, litigation, and open enemies (like an estranged spouse). She is in a stronger position than Mars, however, in an angular house, domiciled, in her own terms, and conjunct Jupiter.
Another possibility is that Ms. Venus is actually planning on a stable serious relationship with another man, not just a love affair, as indicated by Sugar Daddy Jupiter conjunct her in the 7th. But then I wouldn't expect Mars to apply to a trine with Jupiter, if this were the case.
KnS raises an interesting point about Jupiter acting as a frustrator rather than a beneficial force. I just checked the ephemeris, and they all perfect on the same date! (3/14/12) I'd have to construct the chart to see how this works out in more detail. But by that point, the moon is well into the next sign.
Venus is normally the faster planet, so maybe Jupiter does represent a quick trip to the courthouse.
No, he wasn't cheating on her in the classical sense of the term.
I rushed through this because I am short on time and doubt I'll have time for anything like this for the next couple of days, so just want to spit it out quickly. It's like running to buy a lotto ticket before the power ball drawing. 
is collecting the light to rescue the others from their oppositional plight. In this example, however, because of the trine between the two significators, Jupiter is not alleviating the situation but causes a redundancy, so to speak, if it were to operate as a collector. The principal behind the "collection of light" is to "turn a bad situation into a good one," as I understand it, and that principal is not operating in the hypothetical situation with Jupter, Mars and Venus in this chart. And in that sense, maybe it wouldn't work as a collector of light in principal or, perhaps, in fact.