Is it normal a relationship changed my friend's personality, for the worse?
[Sorry this is long but it is about friendship.] I'm worried for my friend. She used to be mellow, funny and happy-go-lucky. I met her because we were coworkers together for a year and we got along. Back then she was so friendly and very social. I moved far away for 5 years so we lost touch. While I was gone she got involved in a physically and emotionally abusive relationship that lasted for 2 years that ended because he was going nuts with all the drugs he was doing. He was even in prison for almost a year for assaulting someone else. Almost a year later after he got out she dumped him and a few months later he killed himself.
OK so that relationship was over 3 years ago.
I moved back and we hang out together again but she's so different now. She is angry and negative 24/7. She says that she hates people because everyone is so "stupid". When I visit her she's rude to me and not interested in anything that is important in my life. She tries to make me feel bad about dressing nice, doing my hair and wearing makeup because she doesn't do it and is a tomboy. It is also in the way that she responds during our talks. For example, if I ask her if she watches a popular television program and it's not one that she watches, she almost always reacts in an offended and disgusted tone as if I should automatically know which programs she likes and does not like. Even when I asked her if she planted carrots in her planter this year, she squinted her eyes at me and said no like I'd just asked her if she poops on her lawn as fertilizer.
She says that she hates men, yet she watches that show on TV about the hillbillies that make duck calls because she's in love with the men from that show.
She's started hanging out with some older (50s) biker chicks she knows through work. I've met them, they're nice women. She doesn't see them all of the time though, but other than me that's about her only friends. She will tell me which days she has off and says she'd like to do something, but when I try to plan something with her it's like pulling teeth trying to get her commit to something. She will only hang out at her house, she never wants to go anywhere else. Lately, she avoids returning my texts until her days off are over. I found out that all she does on her days off is smoke weed all day and watch TV.
Is it normal my friend is turning into bitter angry bitch? She says that she's not depressed but she's acting like she is. Depressed and ANGRY. I'd really like to see her happy again but I don't know how to help her. Any suggestions?