The 8th house is the house of other people's resources (energy, money). It is the house of death and conception (as the gateway to another world). It is the house of crises. And Venus, the sphere of our feelings, is uncomfortable and not at ease here, in the zone of this energetic dummy. For a person with this position of Venus, a critical situation is needed in order to emotionally open up.
It is difficult for this person to feel these feelings, hence the inner turmoil, tears, and suffering. Of course, we also take into account the sign and aspects. The person may even suffer, tearing themselves apart from the inside, experiencing an impossible love. Or, on the contrary, they may create a storm of passion for their chosen one, with clarification of relations, and it is difficult for them to maintain harmony in them. And if the partner is not ready for such intense relationships, constantly fueling them, they will most likely end.
Venus is too hypertrophied in expressing its feelings and emotions, prone to jealousy. There may be critical situations due to love.
It often happens that a person has felt these strong experiences since childhood, has been placed in difficult living conditions, and has suffered a lot.
But this Venus is good here in another way. Venus is the symbolic ruler of the 2nd house, the house of resources, money, and here the 8th is opposite the 2nd. And such a person knows how to attract other people's money. They may work in the financial sphere, or may literally receive money from relationships. For example, a relationship with a married person, "I can't be with him, it's bad for me, but he supports me, buys me expensive things, gifts."
The topic of health should also be noted, since we have mentioned the 2nd house. If a person has strong experiences, emotional upheavals, and they do not find an outlet, they can be reflected in their health. There may be various kinds of skin rashes. There may also be gynecological diseases, hormonal problems. But in any case, we always take into account the connection with the other health houses, the 2nd, 6th and 12th houses.