Hopeless.

I am moving out of my apartment into a house, my best friend told me she'd help & she's been telling me this the past 3 weeks, so today I was off work and ready to get some moving done. She doesn't reply for about 7 hours, then when she finally texts back she tells me she's been with this guy all day, doing mushrooms & drugs. I ask her if she's still going to help me & she says for sure, so I'm getting ready to pick her up, and she tells me she doesn't feel good. Okay, well I found out I had a miscarriage today (after 1 year of trying) & I told her & asked if I could come by and just talk with her since I'm heartbroken, she texted me back saying "I don't want to be "that person", but I've literally had 3 hours of sleep, my body is so weak & I've been sleep deprived the past 4 days" (from doing drugs) & I literally can't stop crying now. Am I wrong for being sad about this or should I just brush it off ??? My heart <\3

Anon because of sensitivity. Thanks