Inside the mind of the other woman

I have been reading posts about women writing stories directing it to the other woman. I could say that there is one standard pattern in all these posts. They put the other woman at a denigrating position, pictured her like some kind of slut/whore for stealing their man, see her as somehow desperate, low self-esteem, basically putting her in a negative spotlight.

But do you women even know what is going through in the mind of the other women?
So well, you should know what I have got to say about this as I have gone through this for around a year plus. Firstly, I would like to say that I do not like to play the blame-each-other-game. Things have happened and I would say that all three of us ( me, him, and you) are wrong in some way or the other.  I am also aware that, when a relationship fails, I shouldn't just blame one party.

Has it ever crossed your mind that sometimes, we might not even know that he is engaged/married/attached and only got to know it after sometime which is when we have fallen head over heels for them? So is it our fault then that we fall for them not knowing they are in a relationship?
Have you ever thought that as much as it hurts you, it hurts us too because we are dealing with the exact same thing and no women likes the man they love to have another woman?

Have you ever thought about how much it hurts us that, though they gossip to us about you, tell us they will leave you, but in the end they chose to stay with you? Do you know that though we listen to all those crap promises and hope that he will do it one day, deep down in our hearts and minds, we know he loves you a lot and he will never do it. We are basically hoping for something that we know have a very slim chance of happening.

Have you ever thought about how much time we sacrificed for the man you loved in the hope that we might someday be with them? Even though we have no idea whether or not he will end up with us, we stayed because we loved him and it hurts us to leave him?

Do you have any idea that the other woman has basic moral principles and values just like you? Do you know that the other woman knows what we are doing is wrong and we are basically struggling hard to get out of this situation?
 Do you have any idea that the other woman might think a lot about you, rejecting physical intimacy from your man, and not stealing much of his time though we love them a lot because we know they have you too.
Do you have any idea how hard we are struggling things on our end to make things work for all of us?

So these are basically some things that you might want to ponder. The guy that I met a year ago, is engaged. When I got to know him, I have no idea that he is still "officially" engaged, have bought a house together bla bla bla. So I have fallen for him not knowing all these things and then when I got to know about it, my world shattered. It hurts me a lot and I feel fucked up. I just left him a few days ago but it is very difficult for me. I love him a lot and I still do. I leave him for his fiancée. So that he is able to forget me and spend time with the fiancée. so that he is able to mend his relationship. Do you see how much of a sacrifice that is for me? So, always listen to the story from both sides. Thank you :)