Search Results: letting go off her

I'm in the UK and it is now currently 3.30am. Around 2am - 2.30am I'm sat watching TV with my boyfriend (who I live with). Then we get a knock on our door... obviously we are shitting ourselves thinking who on earth would be knocking on door at this time of the night. Asking each other if we were expecting anyone and both saying no. So we both went to the front door together shitting ourselves.

Opened the door to find a girl with short red hair, a bruised eye, wearing unmatched pj top and bottoms and sparkly silver flat shoes (in short, a state). She tells us she saw our lights on and heard us talking through window and figured we could help her. She opens her hand to what seemed like 3 white pills and one broken into dust all over her palm.

She said it was crack and she was having a bad trip. She seemed awake, alert, very talkative and very eager to get into my flat. I told her to stay on the front porch whilst I get her a drink of water. We asked what her name is and how old she is, said she's 26 and has 2 kids.
Then we asked her where she lived, apparently only down the road. She then straight asked if she could crash at my flat. My boyfriend said "I think you're better off going home and throw those drugs away".
But she still pushed, she asked if she could use the bathroom. We just told her if she needs toilet she only lives down the road.

Eventually she got that we weren't idiots letting a stranger stay in our home willingly.

Although I probably saved myself a whole lot of trouble turning her away, I still can't help but feel bad for doing so.

What would you do in this situation?