Hello Charm,
in questions of relationships it is essential to look at the receptions.
I expect you to be a woman. This is important for the judgement.
So, you as a thinking beeing are given the lord of the ASC, mercury, and also venus for your libido as a woman. As common in horary charts, you also have the moon.
Your potential partner, a man, as a thinking beeing is given the lord of 7, hence jupiter and also the sun representing his libido as a man.
Mercury is in pisces in the seventh. This means, essentially weak (its detriment and its fall), but accidentally strong (in angular house) - you seek the relationship with him. Mercury has jupiter in his sign: You truly love this guy.
And also, you find him sexually attractive as venus representing your libido has jupiter, lord of the seventh, in her sign. Venus is exalted in pisces, great passion.
Now we look at the receptions of jupiter, your potential partner. Jupiter is at 20 Capricorn in his fall. He has venus in his triplicity, as it's a daytime-chart. Triplicity usually means some kind of warm friendship: He seems to like your companion, but isn't really into you.
Jupiter hates the moon because he has her in detriment, which means your feelings. He can't stand them.
The moon at 5 aquarius by itself hates the sun because she has sun in her detriment. This guy seems not to be good for your feelings.
We also take a closer look at the sun, the libido of the man. The sun at 11 aries is essentially very strong: in his exaltation, triplicity and his face. The libido of the man is somewhat to say very proud of itself.
The sun has venus in his detriment, and also in his term, hence I would judge that he doesn't find you attractive. This ambiguity by two dignities isn't just like plain detriment, because it adds some sort of impersonal friendliness. To be honest, his libido tolerates you (term), although it hates you (detriment).
There was a sextile between mercury (you) and jupiter (him), but this aspect is separative. There is no translation of light by the moon, nor will mercury have aspects till he will have left pisces, so the aspect won't be brought back again.
Mercury is about to enter aries, leaving his own detriment and his fall behind: you will be much relieved in few time. Entering aries, you will start to like his libido, the sun as a thinking beeing.
So, my point of view is that the relationship won't come to pass. It will be more like a friendship at its best. You like him very much, and he likes you too. But more like a friend.