In my view, sexuality is governed by Mars/Venus,their house placements as well as the houses they rule.As an example, I have a Venus in Aquarius friend and his Venus is in the 2nd house in his chart.
So he views love as stability,consistency, security and sensuality with his partners. That is also the nature of his ideals(Venus rules the 11th house cusp).
In addition of-course to intellectual banter and intelligence(Venus Aquarius),he wants to enjoy all the physical pleasures of life with the one he loves
How he goes about getting that which he wants,is represented by Mars.
Mars is in the 3rd house.So he goes after his partners by showing wit,charm conversational ability and dexterity.
I think this in addition to intellectual stimulation(Aquarius Mars),is also what turns him on -from a primal point of view.
Mars also rules the 5th house cusp:He is very creative and can draw really well.
The Moon represents whom his partners eventually become.
Because the Moon is so deeply ingrained in our responses.It often is projected even without our conscious thinking.
So our partner,if they are to last with us, needs to adapt to the nuances and demands of the Moon sign.
We may consciously go after what we want (Mars),be very verbal about the kind of love we want(Venus).But the Moon is really what we get-because that is how we behave in relationships. It is the chronic state of mind/feelings that we have day in/day out.
And if the partner is unable to fulfill the needs of our Moon sign(especially as men),there tends to be serious problems on the domestic front.
His Moon sign is also the ruler of the 7th house(double emphasis). It aspects Uranus by square,conjuncts Mars.
So we have Mars/Uranus interacting with the Moon,which is not such great news for the stability,consistency and reliability that he wants(Venus in 2nd).
His last significant relationship was with Venus in Gemini/Leo Sun individual.
The ex did not like to be told what to do, was unreliable,rebellious towards him and as much excitement as he brought to him/ exposure to new things. He also brought a great deal of stress.
The relationship lacked intimacy,they were never alone because the ex always had friends over. And seemed to put those friends above him(Uranus attribute).
And to add the icing on the cake,he built his whole world around this person.
This often happens when the individual has the ruler of the 7th house as the Sun/Moon/Chart ruler, has Sun/Moon/Chart ruler in the 7th or has those 3 positions conjunct/square/opposite the 7th house ruler.
So when the relationship broke up- so did his "world". It was painful to watch.
The whole chart tells a story I tell ya. Because I definitely would not say my Venus in Aqua/Mars in Aqua buddy is "unfeeling".