It's very late here, but I will have a quick stab at it.
I'm not sure whether to take the sixth house or seventh house for this one.
Firstly, since you are very much asking a relationship-related question (esp if you like him very much
), and not a 6th-house related one (daily routine, health malady, pets), you should take him as the 7th house, as has already been indicated.
I think that, right now, he, Moon, is actually lost in his own world and is a bit isolated (in the chart's 12th houuse). Being in fall in Cap (so weak to act), and having separated from both Ven and Plu perhaps some big and bitter rel'ship related transformation/separtion is either behind him. Yes, Moon will trine Sat in some time, but in the chart they do not connect. You are placed in the 8th house, so you also are not very happy with the situation, and perhaps also have some hidden fears (say, that things might not work out). A bright and strong Sun in the house of relationships - the 7th does leave a ray of hope there. With Cap on the Asc, though, things might happen very slowly.