Should I tell my friend she has lice (read more)?

Well, we’ve been friends for a long time and everytime i sleepover with her, the next day i get lice…and ill have to treat it and put spray and all that stuff. And i dot think she even knows she has lice. Sometimes she wants to borrow my hat and i cant say “no you can’t, cuz you have lice and i dont wanna catch it.” cuz i imagine that’d be pretty mean. and i dont sleepover with her anymore cuz she gets lice all over the bed and she gets lice going on my head and ill have to do loads of works trying to kill all the lice and wash the bed and everything! :/ im kinda tired of it! And i see white little bugs in her hair alot and she scratches. Im not trying to make her sound bad or wierd cuz shes the bestest friend i have ever had. Shes fun to be with, funny, kind, not very easy to get bored with, a good listener, and doesnt gossip or turn back on me, and you can just say anything to her and she’ll understand or be ok about it like if you have the same crush as her, she’ll just come up with a wacky idea to flip a coin…tails she’ll ask him out…heads i’ll ask him out she’s just not short tempered at all…and we like alot of the same things =) but i just dunnoif i should tell her she has lice…if i say i dont wanna sleepover with her and share some clothes and stuff she’ll probably think im mad at her and itll cauise problems maybe………..should i tell her?