Saturn does not arrive in the 7th house with a gift. It arrives with a ledger.
The 7th house is the house of committed partnership, marriage, long-term union, the person you choose to build a life beside. Saturn placed here does not soften that territory. It hardens it. It asks the relationship to justify itself not through feeling, but through form: through reliability, through chosen effort, through the willingness to stay when staying is inconvenient. Couples with this placement often describe their relationship as something they had to work to deserve. They are not wrong.