she’s starting to sleep in the sofa no sex in the past 2 1/2 years?

I’ve been married for almost 3 years. we have a 2 year old daughter. we married really quick for legal issues (I am Italian), and the baby came right after the wedding.
I love her so much, I am 24, she’s 28.
After she got pregnant we had sex probably 8 times. 8 times since January 2007.. Man that’s hard!! we went through counseling, we went to psychiatrist and psychologist.
they all say we are just too different, 2 different cultures.
She needs to stay alone..I need to have a partner
She has no friends, she has been unemployed for the past year, she’s depressed, she can’t find a job and she spends all the time at home with the baby. or chatting online with her virtual friend.

I work, I make every night dinner, I spend time with the baby in the week-end and I pay the bills.
She has been refusing to have sex with me for 2 and 1/2 years, not one little thing, I don’t hang out with my friends that much because I’m careful to my wallet and trying not to get girls to get in my pants. (we live in NY).

I think I’ve been patient enough. I feel miserable but I love my daughter. should I file for divorce? Isn’t divorce bad for kids?In what position am I going to be tho? Do I have to support her in addition to childsupport? how can I afford to pay 2 rents in NY? we were going to buy a house hoping things would have changed but the idea vanished since she started to sleep in the sofa every night.

Her mom got married 3 times and still single, her dad divorced her mom and got married. her sister got married once, divorced and 2 kids from 2 different guys.

Does that make any sense or they are only coincidences?
I think I don’t deserve to keep living like this..I am pretty sure there would not be any improvement in the relationship.. I mean 2 1/2 years went by and nothing changed..

Any advice?

She says she’s not attracted to me anymore, I am not a good father because I don’t spend enough time reading stories to our daughter, and I don’t respect her will to be a painter.. (trying to be a painter in this economy doesn’t pay the bills, I am sorry)..
I get home at 7pm, make dinner for me and my daughter, I watch some tv or a play with my daughter and sometimes I work on the computer on projects for my job). I don’t think I am a bad father at all.. I don’t do drugs and I drink responsably..
Maria.. she has no friends..all her girlfriends she went out before pregnancy are not at her level anymore..(they all like to party too much) and not going out of the house she can’t make new friends..
I will be too hard on her to take the baby away..she’s a really good mom to my daughter.. plus my job wouldn’t allow me to spend enough time with my daughter..
Kimballz.. I would be proud of her and support her businnes if she can act like it and make money out of it.. but for the past 2 years she sat on her ass pricing her paintings for thousands of dollars..
That’s when I told her it was stupid and she got offended.. You cant’ sell a painting for $2000 being nobody.. you won’t sell it on ebay just because you live in NYC.
I make more money with my photography side job too!!