I think it's easier to see why someone else walks out on a natal, than why we walk out on them (well, with only natal chart to go by). Besides, I've very rarely been the one to give up, or walk out first. I always had a difficult time with "dumping" a bf so I very rarely did so, (mostly by avoiding relationships/dates with guys I wasn't "sure" I had a mutual feeling toward to begin with). - always date mutual - never neutral... nothing I feel/do is ever lukewarm, why settle for it in matters of love?!~ right?!
How the few times I had to walk away would be seen in my chart... not sure. I would guess in my case it has a lot to do with that pesky Pisces DC~ Neptune is part of a stellium and smack-dab between my 4th-5th houses. If they had any common line it was they had either an addiction (substance/alcohol), were serial flirts/liars/cheaters, or abusive/sociopaths (my ex).
I think that DC has me either drawn to or drawing in the negative Piscean/Neptune-characters. But, not Pisces, just those with the traits negatively associated with the sign... most the time I had Aqua-suitors. (something in the water where I come from, not sure... but, there really were a disproportionate number of Aquarius around those parts.)
Either way I always felt guilt and sorrow when having to be the "dumper" lol so much that (admittedly) sometimes I would do what I could to be the "dumpee" instead. I don't like conflict, I despise hurting people for any reason, and can't stand seeing anyone hurting. ><; On top of that I've got triple earth governing me, and Cap Suns are determined to see things through to the end, imho, more than any other sign. (Why I'm still married to this bozo...)
If there was a certain planet that indicated why I'd leave it is probably Saturn, if he's against something I am. I take my ruler seriously... hehe I don't mean squares to Saturn would make me despair, but I'd be very vigilant to where mine is in their chart, and where theirs is, and how each plays out individually and coupled. Saturn <3
I think it's easier to use a natal chart to see why they leave you, more than the other way around.
- having that obsessive Taurus Moon
- or the not-so-dreamy-eyed 5th house Cap Sun
and in my early years of dating/freedom --- - - Plu/Mars so closely conjunct in Sco III... possessiveness, clingyness, and distrust were very common causes for my relationships to bomb before they even reached "go"! lol
even if someone was sincere back then I would doubt whatever they said~ 3rd house negative influence~
I didn't -date- in my age bracket often either --- which caused other problems in the long run. -Cap/Virgo/Tau action 'specially that 5th house Cap style of romance~ I could have been responsible for quite a few men doing jail time...
the illusion of maturity and immaturity, purity and impurity were both huge parts in my chart and relationships... consequently - I still think they are. ^^;
Thankfully, I've outgrown the need to possess my partner, I'm never clingy... I despise it now actually~ (the joy of having that Ven-Ura in Sag IV blossomed after marriage) ---
I can't say I trust my partner now, but he's earned my distrust so thoroughly well... but, I have tried for my last few (before I was in these last two committed relationships) to give everyone and anyone the benefit of the doubt... so, my Martian/Pluto/Saturn Scorpio are all in their place for the most part....
Oh, but that moon~~~ my obsessions come and go in waves.
Another thing I've noticed more through looking at synastry now~ I don't like when someone else has contacts conjunct my Sun... I'm still trying to find information on why this might be ---- but I swear if they have planets or certain asteroids touching my sun, it kinda' "creeps" me out. I've only looked through a half dozen examples --- but, would not be surprised if there's a pattern there with some of the admirers/relationships I had that caused me to go running~ had this aspect. It would also make those that conj trine my Moon~ maybe that's why it feels overwhelming dealing with them, in a bad way overwhelming... not good.
^^; sorry for the long post~ <3
in conclusion - listen to Saturn, and don't touch my Solar energy~ hah
/itsgottabethemercury-iswearidontusuallyramblesomuch-honest!