Friend Bet Me $150 I Couldn

BEST-FRIEND/ROOMMATE refuses to pay rent (long story please help)?

So this mess started when my best friend of 15 yrs ask if she could move in with me, my husband and aunt. She wanted out from her parent’s house. She had to move back because of a break up.I needed help with rent. I told her the rent for everyone together was $1,050.00 per mo. I said $300 seems fair the room you’re getting and she agreed!
She came to me a few days later and said is there any way I can pay you $200 instead of $300? I knew she was technically without work so I said $200 is fine. But I have never seen her without her cigs, coffee, $150per mo droid phone or gas. Easy to say she has it.
But we were friends so I let it go.
The 1st mo went good I liked having her here. The rent was due on the 1st I reminded her on the 28th she said she would have it. I didn’t bug her again. The 1st rolls around I knock on her door and ask for the rent.she says “ oh im not giving it to you I want a receipt. Ill pay him later”. I said ok well I’ll make sure he writes u a receipt. She said she wanted to meet him. I said ok will tell him youll set up a time to pay him today. 2 days later she finally pays him.I wasn’t happy. But I was nice. This month!I reminded her 26th on. She said she had it and no worries. I was sure she was not going to make that mistake again. My landlord owns a market my husband and I work there with him of the weekends. Her excuse for being now days late again was she could not in anyway get ahold of him. But she refused to give it to us to give to him. Meanwhile I need to be hospitalized and may need surgery. I know random well it was a shock.
My landlord told me he did talk to her and she never showed up to pay and he waited twice for her. She is now over a week late. My husband was very nice. He knocked on her door and he said can I get rent from you the landlord is getting angry. She said “I don’t have it. I couldn’t reach him and I had other bills. My money is first come first serve”. My husband got mad at this point and said “fine then get out”. She tried to say if I were her friend I wouldn’t do this to her. She even said this was the first time this has happened. Is she forgetting last mo. I mean she has only been her 2 mo. How can she forget?I can’t see myself trusting her or being close with her ever again and I also want her out of my home. I want other people’s take on this?!!?

if you need more info just explain what.