In these kinds of horaries, Saturn in 7 can also represent another love interest, with retrogradation, it can mean someone the person has legal obligations to.
Do you know if he's married?
What it looks like is there could be a brief interaction between you guys, then he goes to Saturn (sign change), e.g., returns to whoever he's interested in. But he might still let you be his mistress if you are amenable to that. For some women, that works. In this chart, it doesn't look like it would work for you, but ultimately, that's up to you.
Not saying this is definitely the case, but I've seen it be the case with these sorts of configurations.