this composite seem a bit problematic though on the surface it may not seem so.
moon square to the venus/jupiter midpoint gives a positive ,expansive affection for each other.
venus trine to the jupiter/uranus midpoint is very exciting and energizing as it shows affection and the enjoyment of each other socially..this can be an aspect of sudden attraction which may account for the spontaneous way you hooked up.
but this trine is not cohesive enough to offset the aspects of ambivalence and discord.
the jupiter/neptune conjunction sextile to pluto,can show the work related nature of the relationship and gives a very understanding,supportive and sensitive feeling between you.but the potential problem here is the finger of god formed by the sun to the former sextile pattern.this will intensify the postive aspects of the sextile pattern and can be very constructive for the relationship .but this harmony is likely to be disrupted as the mercury/uranus midpoint is oppode to the sun and moon.while this will give very intelligent and enlightening exchange of ideas,it often shows that differences in veiwpoints can lead to arguments.with the pluto/jupiter midpoint conjuct mercury/uranus, you need to folow the old axiom ;don't talk about religion or politics.as the supportive harmony can break down suddenly and potentially visciously.this is a function of the finger of god.it can be very benefic but when if it turns south ,it can unleash an unexpected vehemence that is not reflected or expected from the jupiter/pluto/neptune sextile pattern.and with jupiter bring the workplace into it,you must be very cautious here as discord in the relationship will likely overflow into the workplace, an old story.the moon/chiron midpoint is opposed to mercury/uranus and pluto/jupiter .this indicates that you understand each others emotional makeups intimately as well as your respective emotional issues.so if arguments occur the cuts can be very deep and cruel emotionally.
there are several aspects that show the relationship will probably not evolve into something steady.and hence one must keep this casual and refrain from projecting commitment etc...
mars is square to uranus and the midpoint is conjunct to pluto.this shows that he is very independent and selfish inspite of the emotional intimacy you have.
the venus/uranus midpoint is opposed to the satrun/moon midpoint.moon/saturn can show feeling of devotion and faihtfulness but with the venus/uranus mp opposed, any such feelings will misguided.
the mars/uranus midpoint is also square to the venus/saturn midpoint which gives a similar dynamic.feeling of commitment will be dashed by his need for freedom.
mars/saturn mp is conjunct the descendant,also showing a hesitance for a intimate ,steady realtionship on his part.again with saturn opposed to the the moon/venus midpoint,there is a damper on a steady relationship in spite of the affection.
then there is the venus/mars midpoint opposed to neptune.this vibration is probably why everyone thinks you are involved because this does show hiddden relationships but most often it shows he has other lovers and would not be faithful.the jupiter/pluto midpoint opposed to the sun/moon implies that personal ambitions are at the base of the relationship.meaning that love is not a priority.this would reflect on you both and this mp also implies that there are other relationships,ex's,family,business influences that will trump the emotional connection you have.
this is why the finger of god is so ominious as most likely emotional confidence and intimacy will be betrayed by blind ambition inthe long run.
but with the moon/chiron/sun stellium you probably realize this.so don't second guess you gut feelings.
rahu
(being, also action) modifying 
(relationships) on the composite Ascendant (self). To me this indicates that when you two get together you want to get "active" in a relationship. It also suggests that if you don't actively work to keep that connection relationship active, it will go away and "burn out".