Well you two are quite the couple!

I see some very strong connections there, and a LOT of intensity. 'Course you're both pretty intense individually to start with: him with his Neptune sitting directly on his Scorpio Ascendant and squaring his North Node, Midheaven and Saturn, and Trining his Jupiter, and Mercury-Venus conjunct in the Scorpio-ruled 8th house! And you with that powerful Mercury-Mars-MC grand trine focused into a kite by Venus conjunct Moon opposing your Midheaven!
Karmically, your North Nodes both conjunct each others' Moons, giving a strong element of "destiny" to your emotional connection. (His NN also sextiles your Sun and Pluto.) His Saturn Trines your Sun, while yours Trines his Moon, another karmic relationship bond.
In terms of pure romance, it is said that Mars in a woman's chart shows her choice of man, while Venus in a man's chart pictures his ideal woman. Well guess what? His Venus conjuncts your Mars, to the degree! Wow, talk about passion!
The other way around is nice too, with your Venus Trine his Mars. No lack of sexual or romantic chemistry between the two of you.
His Mars conjuncts your Jupiter, and his Venus sextiles it. Both these aspects promote cooperation and harmony with a lot of optimism. Just don't get TOO optimistic (especially with his insanely strong Neptune), or you could end up blowing everything on a big gamble of some sort.
The major challenges you might want to look out for are Sun square Moon and Saturn opposing Moon (your Moon in both cases). Sun square Moon can give rise to petty bickering and lovers quarrels, and Linda says about this aspect, "Take a silence vow when either of you is tempted to say something you'll surely be sorry for later when you've cooled off." Saturn opposing Moon will likely bring periods when the passion between you cools off for no apparent reason ... and you're better off just waiting for it to pass rather than trying to find a reason. Just respect these periods when they occur and wait for them to pass, as they will.
All in all, I'd say there is a lot going for this connection - but nothing boring about it!
Love,
Greg