For Venus-Saturn (or Venus in Capricorn) love is time-tested, a feat of endurance, patience, hard work, building, building, building... one brick at a time. There are no shortcuts, there is no flash-bang spontaneity of lust and reverie. What truly makes them fall is the sense of duty and commitment that can only be reaped over time.
The tests of the tensile strength of the couple-bond can be either intrinsic or extrinsic. With the soft aspects of Venus -Saturn (Trines, Sextiles and sometimes Conjunctions) the testing may be delays in love, time needed to mature to form a healthy bond, personal insecurities that are slowly but surely overcome. These partners make steadfast lovers, the kind of people who know how to make a commitment and honor it through the ups and downs.
But when Venus-Saturn comes in a harsh aspect (Oppositions, Squares and sometimes Conjunctions) we see the same qualities as above but distorted and often, very often, present in what can most sufficiently can be explained as "burden" in a relationship.
Enter Stephen Hawking, quite possibly the most brilliant man of our time. His personal tribulations (and personal triumphs) can be most readily attributed to the profound abundance of Saturn/Capricorn in his astrological chart. An astonishing observation truly; a soft aspect of Saturn hitting his natal Capricorn Sun - you can't make up the kind of challenges and seemingly insurmountable obstacles he has faced, and yet overcome. And it was all done through sheer will, hard-work, and commitment to his life purpose. Emblematic is an understatement.
His love life is a legend in itself and also a fine example of Venus in hard aspect to Saturn (Venus square Saturn). As I stated, we look for the signature burden in the the love life with this aspect and it can be intrinsic to the relationship, for instance, one partner entering the relationship with or developing a significant disability or illness. AND/OR the partner could be chronically unemployed or struggling for security, as Venus also represents personal finances. Marrying late in life is common with this aspect, but so is marrying young (for one's peer group/culture) - these two temporal extremes represent the strong commitment desire-nature of Saturn/Capricorn. They are often attracted to older, distinguished persons when young and to youthful ingenues or cubs when they are older. This makes the Saturn-Venus FEEL time - and as much as he begrudges time, he is enormously attracted to it.
The romantic style of the chart holder with this aspect, and/or what they look for in their partner, is a readiness to commit and a willingness to do the hard work of building an impenetrable foundation of love. Stephen Hawking and his first wife Jane epitomized this, as they together confronted obstacle after obstacle, even before they officially formalized their relationship in marriage. To enter into a union with a spouse facing a succession of profound, degenerative disabilities is what many would consider too much to bear. But for those with Saturn-Venus signatures natally, in synastry, or by transit, this is subconsciously considered tinder for the bonfire. This is when they and/or their partner get to work, proving their love.