Hi Lucy, I think I can help.
The Mars/Neptune conjunction in your 7th, in Sag, can be taken to mean that while you put a LOT of energy into creating relationships with people, you often harbour very idealistic (or unrealistic) ideas about others; in other words, you sometimes don't see either the -person- or the -relationship- clearly. Rather, you can have a 'rose-tinted glasses' view of others, which can lead to disappointment. Sagittarius is an awfully idealistic sign (I should know, being a Sadge myself

) Your love nature is also Sagittarius, and squares your moon in late Pisces in the twelfth. I interpret this as you being sometimes at odds between your -needs- (moon) and your -wants- (Venus). Pisces, also, is very idealistic, so the real trouble may be that you set yourself up for disappointing situations.
ALSO, you are going through a helluva Pluto transit. Pluto has been in Sadge since 1995, and for the last, oh, seven years, it has progressed over your Mars (which is a bit like a bomb going off in your 'relationships' sector), then your Neptune (upping the unreal/ideal); NOW it will soon hit your Venus in the 8th, by the end of 2007 or so. Keep in mind that this conjunction will also square your Moon, amplifying your deepest needs.
Let me tell you what a Venus/Pluto conjunction is like (mine just finished; now Pluto is hanging out over my sun for the next year or so!

). When Pluto went over my Venus, I became 'the huntress'. No man was safe from me.

But joking aside, my marriage went to hell (and came back); I had a sexual affair with a close friend of mine, who is now not my friend; I also reunited with the love of my life (who isn't my husband). BUT, due to the sheer intensity of the transit I had to meet him and then leave him as the key word was COMPULSION. That's the thing with Venus/Pluto (especially since you have it in the 8th!!). You -MAY- very well meet someone (or several someones) during this transit, but -be careful-. The thing is, 'love' under Pluto's influence , becomes very much about 'power' - who has it, who doesn't. It -may- be a good time to meet someone; it -may- be a disaster. What Pluto is doing for you, during these several years, is forcing you to look _underneath_ what you 'think' you want/need, what your parents/society/the government _tell_ you you need, and asks you to figure out exactly what _you_ need, for _you_ to be happy.
So don't be in quite such a rush to 'find' someone else. Chances are, after Pluto concludes this transit of your 7th/8th houses, you'll find that you, and the people you want to be involved with, are very different to who you/they are now!
Best of luck. You'll need it!