Let me propose a theory. I might be completely wrong so take it with a grain of salt..
You probably were getting on great but around the 2nd of August you were starting to slow down ever so slightly.. when Mercury in Cancer, (sign of your fall), in your 8th (this matter was hidden to you) makes a semi-sextile with Venus in Mercury's own sign (Gemini). At the time, Venus was leaving a sextile with you and Mercury was leaving a square with you. Is it possible he was actually at someone's house that day? Someone that you'd had some conflict with..? However, it wasn't a major aspect so not a big deal, but it sets the scene. A few days later, Venus goes into Cancer, the sign of your fall; after that nice sextile and now being comfy in the romantic Moon's sign, he starts feeling irritated by your Mars in Aries energy, like he doesn't like you.
You were about to do something around this time -- make some kind of change or go somewhere, represented by your move into Taurus. You were probably feeling stuck after having been in Aries so long. This change would have been good for him (his sign) but to your detriment (Taurus)... but you slowed down and deliberated. Ultimately this was the right choice for you, but he didn't like it.
Then he changes. On the 1st of September, he moves from his 2nd to his 3rd house, and on the 3rd of Sept., Mercury reappears and swiftly makes sextiles with him. Both at 26 degrees, Venus is in Mercury's terms, so he quite likes whatever is happening, and Mercury is in Venus' triplicity and face.. However, it's also in Venus' fall; with this sextile, Venus has fallen from grace, and Mercury has probably benefited more from the interaction.
So the next day, the 4th of September, he's at 27 degrees Cancer and starts squaring you. You're about to station at 27 Aries; you would have been feeling a strange mix of being a great version of yourself (in your own sign) and wanting to charge into something new, but conflicting feelings about needing to redo something or stay in the same place and keep doing something.. that decision not to do what he wanted probably stressed you, and created conflict between you.. and then things suddenly change when he moves house into his 3rd/your 9th, harshly squaring you from the sign of your fall. You’re under the earth so you can’t see what’s going on up there, and in a few days you’re looking in the opposite direction as well. You have no idea.
They (Merc. and Ven.) continue to communicate/sextile on the 4th and 5th, but by then Venus is out of Mercury' terms, and doesn't really feel good about it anymore.
A couple of days later, Venus moves on from Cancer (the sign of Mars' fall), and into Leo, so his heavy negativity towards you seems to disperse, BUT, Leo is intercepted.. so the reason he's feeling better can't be seen; it's repressed and bottled up.
Anyway, fyi, they're not going to be in contact again for a long time.
So. Although we don't really use minor aspects, we can see that he's the apex of a yod; he's under a lot of pressure from Jupiter and Neptune, rulers of his 8th and 10th. That could be a 'big deception', around debt, drugs, secret sex, hidden problems or big deceits at his work.. or all of them.. but he's stuck in this cadent, intercepted house: he can't blow off the steam and he feels suffocated. He just wants to escape.
And finally, the Moon: what just happened? It squared Venus from your 12th house: a 'hidden enemy', someone or something you don't even know about. But Venus rules your 12H! And furthermore, his antiscion is in his 12H, and his contrascion is in your 12H. He's secretly done something against you which you have no idea about.
Next, the Moon sextiled Jupiter -- his L8, your L2 -- is it about your money, or him having an affair, or is it about his debt? Then, Moon trined strong Neptune in your 4th house -- the end of the matter seems to be about deception. And who did the Moon last pass over? Mercury, the cheating trickster, on the atrocious 22nd degree, in Venus' own house, intercepted, so you don't even see that they're in opposition to you, and in your house of friends at that.. Mercury is also in his ..5th house of casual sex.
As ElenaJ said, on the 29th he will trine you, but on the same day you square Saturn just as it goes direct, so probably you'll have a different perspective by then