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Demi Moore - Source: Bang Showbiz
Rumer Willis is finding her mother Demi Moore's troubles "tough".
The House Bunny actress was present when her mom - who is currently believed to be receiving treatment for substance abuse and an eating disorder - suffered a seizure at a party last month but her friend Zac Efron thinks she is coping well with the situation.
Efron - who was recently romantically linked to Rumer - told US TV show 'Extra': "It's tough, but I think she's all right.
"Me and Rumer have been friends for a long time. I know Demi is going through some personal stuff right now. I just wish her well. I hope she's doing OK."
Meanwhile, despite multiple reports stating Moore is currently receiving treatment at the Cirque Lodge clinic in Utah, several sources have told gossip website TMZ that this is not the case, though it has not been revealed where she is at present.
Last week, Demi's three daughters, Scout, 20, Tallulah, 16, and 23-year-old Rumer, as well as their father Bruce Willis, were said to have encouraged the Striptease star to seek professional help, but she refused to go to rehab.
Her estranged husband Ashton Kutcher - who she split with in November amid allegations he had cheated on her - is also thought to have urged Demi to go to rehab following her collapse.
