Is it normal she loves me but does not want to leave her husband

This may be long enough but i'll try to keep it short and simple. I liked her from school. Never talked to her i was a shyguy. After college we meet on facebook. We started talking. Even she had feelings for me since school. The point now is that She is married with two kids. She does truly love me she tries to talk to me every second she can but not when her in-laws are around. I cannot talk to her when i want or even send her a sms. We can only chat only on her convenience. We can never meet. Strict in-laws. She says she wants to live with me but.. This if and buts driving me crazy. She does not wish to spoil her image. Since she is married she has been mostly fighting with her husband as she said it. Yea she accepted she also has been in a relationship with another guy after marriage. Her husband also has an extra-marital affair which few days back he accepted. I don't mind her being married and her past affairs still i am ready to accept her but she says she won't leave him just for the sake of the kids. Yea he treats her like a servant at times also physically abused her fifth time now and she forgave him the very next day for abusing and also accepting for being in a relationship with other girl. I'll post the mail here which she sent regarding whats on her mind. I am confused too if i should stay or leave them alone. Or should i stay as a hidden friend for a moral support or whatever i am for her. I Love Her still is what i know for what she was and what she is and so does she. But.. better i post the mail.

"Don't know where to start. Am I happy Am I sad Am I neutral.Don't know if I wanna cry, YES I did cried lil bit.have never

hated any1 in my life. but I do hate nisha (The girl her husband is dating) wat do I do. As I know me myself also wrong. I am

wid you completely. n will always be.but I don't want anyone like u (special one) to be in husbands life.. Y ?? I don't know.

not her any other will do. May b... coz I hate her. I have warned him I want your zero touch with this girl.. and he has said

yes. what should I do now. shall I leave him. thinking of the consequences. only for kidz. I don't care for myself. but even

if I try to my and his parents will not allow. Any how they shall arrange meetings & after discussion will advice us to stay

together. Shall I just keep quite and try to forget it.And think I am staying with this man just for the sake of my kidz and families reputation?
shall I run away taking ash (Her daughter) with me?
shall I teach nisha a lesson or should i tell her mom everything about her and my husbands affair?
but it'll be of no use. she showed that I loose and she won. she took the revenge of her insult.shall I talk to father-in-law?
shall I pack my bag and go to moms place?
shall I tell him for divorce??
or shall I tell him to not to interfere in my life and I'll not in interfere in yours and we'll stay in one house but not like husband wife.

Trying to find out whats missing in me.
am better cook then her
am from a better family
he had choosen me and sent a proposal fr marriage. He loved me madly but till marriage then his love disappeared
I tried so hard to adjust but I never got any importance from him. which I deserved or as I see other girls get in there inlaws.

What should i do?
Who shall advice me whats right or wrong?
what if I get separated. He (Her husband) can't live without ash (Her daughter) n ash can't live without me..
and apparently I can't live without both my kidz.
if I was not wrong. I mean involved with you. I would have left him for sure. Now this guilt factor is killing me.
God has slapped me hard. See wat you are doing and if your husband doing the same thing. You are being shattered.
Yeaa.... tit for tat
she is a bold girl and she surely knows he is a rich guy and she will not leave him.
My Brother said lets talk to your Father-in-law about his affair as he knows about them and he has fear of his father but i

don't want in any way ever your name to come anywhere.

Mind Jammed. Please give your opinion.
Don't wanna take any stupid step."

Before posting this I sent her a mail asking her to decide what she wants or talk on the decision or else i shall move on to find someone single and available who can love me full time not part time.

Any Advice or suggestions??