Like all the aspects involving Saturn (see Saturn conjunct Moon, or Saturn square Mars, the conjunction with Venus talks about impossible standards the person hold themselves to. There is a very extensive sense of duty, commitment and reputation. Love is desired more than anything else, but also feared.
The education they received could have led them to believe one way or another that, to be loved, they would need to earn it. By being flawless, successful, worthy. This leads to a lack of self-confidence and they work hard at bettering themselves.
I noticed two major trends of behaviours: Staying single for a prolonged period, until the person develop the self-confidence and acquire the belief that they deserve love; or mating with one person that they will be very committed to, partly maybe because of the belief that no one else will love them.
In partnership of any type, they are extremely devoted and loyal. Cheating isn’t really the classic behaviour of an unhappy Saturn-Venus. Saturn ruling Capricorn, they will probably aspire to have a traditional family, and they will be there for their family no matter what.
Their partner could also be a business partner, or they could treat the relationship as such. Saturn talks about containment, and there is a difficulty to be expansive in the demonstration of their feelings, unless there is a strong Jupiter.
Although they crave love and intimacy, because of their sometimes cold attitude, they could deprive themselves from the love they want to receive. Saturn is always quite the paradox, and the key here is to learn how to recognize those behaviours, and practice self-positivity and self-reinforcement. There is a need for the person to repeat and believe: “You are worthy of love, you do not need to do anything in order to be loved.”
They may also expect from a love partnership to bring social status and financial success. This could be one of the reason why they could choose someone older; someone with an already good situation.
In business, Saturn conjunct Venus knows timing. They are patient, dedicated, and hardworking. They can attract powerful and successful people in their life, who will help them financially an/or professionally. This can take the form of teachers, friends, mentors, and partners.
Venus represents the physical appearance as well, (even more if located in the 1st House or ruling the natal chart) and the person could age really well.