Heart got broke need to make sense of it

I am married, so was my girlfriend. We had an understanding, Both of our husbands werent involved or bothered by it. The thing is I fell totally in love with this girl because she swore she loved me and stuff. She had moved to a different state, but we would talk on the phone and she would beg me for phone sex and stuff. I went down to visit her, got drunk and she threw me down on her couch without kissing me or anything and started going down on me, her husband walks in and we both jumped up, it wasn't a huge deal. Well I have social anxiety and my daughter is autistic so the only time I ever make any plans are for Halloween. So she said she would bring her kids down a week before and stay with me, then we would drive back to her state and have a Halloween party. My husband drove 3 states to pick her up. He tells me she was stoned on the drive and is telling him some weird stuff like she hates blondes (i'm blonde) and she acts dumb to get what she wants and creepier something like she wants to be me. Her family lives in my town and my husband is like I bet she picks a fight so she can go party with her mom. See she had been fighting with her husband about some boy from ny that she cheated on him with, because she fell asleep on the phone and it was that boy on the phone when her husband picked up the phone. I had asked her at the time why she called him and she said her mom told her the boy was threatening to kill himself. So I got into it with him called him a stalker and told him he was ruining her life. So she gets here, and I slept beside her everynight , the first 3 nights she piled her kids on top of her. The last 2 nights she put them o n the couch and still, nothing. She never kissed me or anything, so the day before we were supposed to leave, she starts saying she don't like to be touched and only has sex like once a year. Then she picks a stupid argument and goes totally crazy on my husband, then says I'm calling mom to come get me, so we said well we will give you a ride, she wasn't having it. So her knowing I only am able to get my mom to babysit once in a blue moon and had bought an expensive costume, she goes back home. I see on her myspace happy to be back to civilization , going to the beach with mom! Turns out she was at the beach in her costume I picked out with her mom and her boyfriend from NY, yep the one she said was stalking her.

Why would someone do this? I cried for 2 weeks straight, I really loved her and I think she was just using me for attention or something. I never lied to her about anything, I wasn't trying to have my cake and eat it to, I was just honest about having feelings for her and no one had a problem with it. I told her her I didn't want anything to do with her and I deleted her, but her page still says I'm her best friend and she likes taking bubble baths with me, I've asked her to remove it and she wont. I know this is going to sound so selfish, but I feel like I have missed out and will never know what it's like to have a girl love me, because I'm married. I met my husband when I was 17 and I love him , but I was 

always attracted to girls, but I live in the country and never even thought of trying to date a girl. I'm not some married woman looking for a 3way or anything, I just wanted a meaningful relationship with

a woman. Am I a bad person?