I wouldn't give up hope just yet -- people who walk away during a Venus retrograde sometimes do return once Venus goes direct. The fact that he's an Aquarius Sun with a Scorpio Moon also tells me that this is a man who plays his cards very close to his chest. He does not find it easy to share his feelings with other people -- especially since his Scorpio Moon (the Moon is in its fall in Scorpio) is conjunct his Ascendant, suggesting that his feelings run very deep but he doesn't always know how to deal with them. That being said, I don't think I would advise putting all your eggs in this man's basket -- especially since his Uranus squares your Ascendant, suggesting that this relationship is prone to instability. He's also dealing with some rather challenging aspects in his own natal chart with regard to romantic relationships (Sun square Mercury, Sun square Mars, Sun square Saturn, Moon inconjunct Venus, Moon square Neptune, Venus inconjunct Ascendant, Mars opposite Saturn).
One thing that concerns me a bit about the overlay chart is the fact that all his inner planets activate powerful -- and in some cases, emotionally vulnerable -- relationship houses in your chart but only one of your inner planets does the same in his chart. His Sun falls into your fourth house, his Moon into your twelfth, his Venus into your fifth house, and his Mars into your first house. Your Sun on the other hand falls into his twelfth house, your Moon into his ninth house, your Venus into his second house, and your Mars into his ninth. When one person's planets fall into important relationship houses in a second person's chart -- the first, the fourth, the fifth, the seventh, the eighth, and (to a lesser extent) the twelfth -- but the second person's planets don't do the same in the first person's chart, it suggests that the second person is the one who's more emotionally invested in the relationship.
I can definitely see why you might feel drawn to each other, as there are a quite a few aspects between your charts that are favorable for romantic attraction -- a mutual Sun/Sun aspect (trine), a mutual Venus/Venus aspect (trine), a mutual Ascendant/Ascendant aspect (conjunction), your Sun trine his Uranus, your Moon trine his Venus, your Moon trine his Mars out of sign, your Moon sextile his Jupiter, your Moon (possibly) sextile his Saturn at wide orb, your Venus sextile his Uranus, and your Venus conjunct his Pluto. It's obvious why you in particular are drawn to this man because he's activating two of your most potent (and emotionally vulnerable) relationship planets, the Moon and Venus, very strongly.
Unfortunately, however, I'm also seeing quite a lot of challenging aspects between the two of you including more than a couple of inconjuncts -- and inconjuncts are the most challenging aspects of all because there's really no way to find common ground between two signs which are inconjunct. Several of these inconjuncts involve his emotionally vulnerable planets, suggesting that he's likely to feel the effects more powerfully than you do. Your Sun is inconjunct his Jupiter out of sign and inconjunct his Saturn. Your Moon is inconjunct his Sun out of sign and is inconjunct his Chiron. Your Mars is inconjunct his Venus and his Neptune. Your Ascendant is also inconjunct his Venus. I won't lie to you...these will not be easy to deal with. However, since you've been seeing each other for five months -- enough time for a relationship to be established -- then perhaps it would be worth doing a composite chart to see if it compensates for these challenges.
In addition to the inconjuncts, I'm also seeing a fair few squares and oppositions. You have a mutual Moon/Moon aspect at a wide orb, but it's a square. You also have a mutual Mars/Mars square at a tight orb -- and your Mars is opposite his Sun. There are two aspects specifically which concern me -- your Mars squares his Saturn and your Saturn opposes his Venus. These are both seriously challenging aspects in a long-term relationship because Saturn tends to block or inhibit whatever it touches in hard aspect. The Mars-Saturn aspect in particular concerns me because his Saturn is in a Fixed sign, suggesting that he's prone to be inflexible when it comes to compromising on Saturn-related issues.
not sure if this means the end or not....
He reached out again last night but I didn't get back to him right away so now he is not responding to my latest text... ugghh.. I think we both have some ego issues going on between us ('now that she's not answering right away, I won't either´, type of game)... he tries to get emotional reactions out of me at times by saying or doing things he knows annoys me or would make me jealous. He once said that he liked when I showed my jealous nature because it meant to him that I "cared". This relationship...connection...feels very Plutonian. Having grown up with a Scorpio mother and myself having Pluto conjunct Sun and a Scorpio Rising, I recognize the drama all too well.. I'm very dramatic myself when in love and I sense he is too. I just don't want him to ever leave.... " can't live with him...can't live without him" 
