Need to vent

My husband and I have had a hell of a time TTC with different infertility issues. My best friend miscarried about 3 1/2 months ago. She said she felt guilty for feeling relieved because she didn't want the baby. Then she broke up with her boyfriend of 2 years and had sex with 7 or 8 guys in two weeks and now thinks she's pregnant again. All day every day she's sensing me messages about getting an abortion or being sick and thinking is morning sickness. It's killing me on the inside a little but I still try and be supportive. At what point do I draw the line and tell her I need space? ! I'm losing my sanity a little at a time. ..