His mars falls in your 5th house widely sextile your venus, this would be the sexual attraction you have for him, its quite a wide orb though so its not that powerful....maybe he's not your usual type ?
His venus also in your 5th trines your uranus, this would be the excitement you feel with him, he probably brings you something different to your life and hes maybe not the usual type of guy you go for, but there's just something about him that you find very sexy.
Your sun trine his pluto in your 8th house would make you very drawn to him in a very powerful way, its intense and you find him very fascinating, as his pluto is activating your 8th house this would be the intensity your feeling, you probably can't stop thinking about him, want to be around him, your feeling this strong pull towards him.
Your mars trine his neptune, i personally don't like neptune in synastry it messes with your head, you think this person is the best thing since sliced bread, it plays tricks on you...until the smoke screen disappears and you see things for what they really are, but this usually takes time.
So far seems like a holiday crush/romance.
Add in these to your chart, i wanna see where they land....
Eros (433), Juno (3), Amor (1221), Valentine (447), Nessus (7066)
Just spotted one more... his SN tightly conjuncts your saturn in your 6th, SN is about what we find familiar its our past. This is adding to the strong pull you feel towards him, with the SN this is most likely a past karmic connection your having with him, which is bringing you both together by making your paths cross again until you "get it".....get what ? the lesson your supposed to be learning from this/in your life.