What signs/sign placements are likely to...

Walk out of your life and expect to be welcomed back again like nothing happened?

How did this affect your relationship with the person, and how did you handle it?

Why don't they think about how this makes the person they leave behind feel?

Tell me your stories/experiences!

Libra.

This doesn't quite answer your question, because I don't know signs or placements of people with this characteristic. But here's what I lived with and through for over ten years. I add my personal triumph at the end.

My experience was with a capricorn man. I call it now "he just wasn't that into me". Period. Not into me -- into work, school, family (siblings, parents, etc), whatever -- But certainly not into me. Regardless of how great it was when we spent time "together". Forget the excuses and "reasons" I would tell myself to justify the feelings of confusion I would experience. I would come and go out of his "romantic" life because I was waiting for him to come to me -- not the other way around. However, he never would come to me. I always circled back. Now, I was ALWAYS welcomed by him with open arms and geniune love and affection. It was this cycle that kept me coming back and hoping "things may be different this time...if I just do this, or ... if I just understand that..." Whenever I returned to him it always felt like we were never apart. It was like he was waiting for me to come to him. As if I was the one who left the relationship, not him.

I always thought it was something else that stopped us from making a commitment. Something outside of "us". He wasnt' where he wanted to be financially, professional, emotionally, etc. The whole gamut. You see, we shared a very spiritual relationship, which always ignited the physical chemistry. I thought it was something so special that two people would never want to lose.

I just didn't get it.

Then one day, I finally got it.

Answer: It felt like we were never apart whenever I returned to him because it was what it was all the time -- FWB.

My FWB status never changed for him. So why should his reaction to me change? I thought I had different status, so I was the cause of my own pain and confusion.

The FWB factor was always there to his way of thinking. I was just too naive to see what the relationship really was.

Thank God, I finally got it and I have no regrets.

I learned that people come in and out of my life like seasons and for reasons. I made a decision to learn what you can from them for the time I have them. Know when to hold them, or when to fold them. I know that sounds cliche, but I have found this to be very healing.

Ah, to me, it's the classic Aquarian archetype.

Aquarius is like a stroke of lightning. When they get mad, they disappear COMPLETELY. Poof! gone!
Totally gone from the face of the Earth.

Then you need not fear, because they return just like they disappeared. In a flash of lightning again.

Libras are not like that. Libras are always waiting behind the scenes. They dont disappear like Aquarius does. Libra tends to let you know they are there.

Feel?

First instance: LOST.

second instance: Confused

third instance: they'll never leave. they just go and then come back..

When I do the disappearing act, I actually want them off my life and my back, but sentimentalism creeps in some.

"people should never think your friendship/love is granted.."
Exactly.

Not everyone understands the "disappearing act". Some take it like a game and SEEK you out. You may know who I mean, tsk tsk =)

But the OP said this
"Walk out of your life and expect to be welcomed back again like nothing happened?"

This means the person who disappeared is at fault. But when Libra disappears, usually they feel the other person is at fault. . . at least in my experience.

as a libra, i have a bad habit of doing just this sort of thing. and i disappear. i think about people. like, seriously, i think almost every day of people i haven't spoken to in years. but i'm not waiting around. i'm not watching. they don't know i'm thinking of them.

and sometimes i come back. usually i don't. and i'm really not sure why i come back. just some impulse.

I'd have to say LIBRAS. The Libras I have encountered are known for not being 100% sure of their decision to walk away from something or someone. Thus, it's only to be expected or natural in a sense for them to bounce back to that person, as their emotions about things are literally bouncing back & forth too. Libras only do this though when they're in their "indecisive" stage, which can last for long periods of time depending on the circumstances.

How did this affect your relationship with the person, and how did you handle it?
When my 1st love (Libra) did this, 1 part of me was happy that he was back b/c hey, I wasn't necessarily ready for him to leave & for things to be over. But when he kept reappearing just to disappear again, I started getting concerned. I wondered if this was just a game of cat-and-mouse for ego/pride purposes moreso b/c I was that hypnotizing. After a while, I recognized that this person assumed that I'd always be there no matter what & that even though I could understand his back-and-forth thought process, I didn't feel it necessary to be punished for it or to be taken down uneccessary emotional rollercoasters all b/c HE was the one with the problem of emotion management. When you're not ready to let someone go yet, that other person coming back & forth can be tolerated. BUT, when you're finally tired of the games & ready for the official conclusion or decision, it gets old. And quick