No idea where to put this ....

I'm in a dilemma .....

I dont have anything to do with my mother .... she was one of my abusers and decided to cut her out of my life justbefore last christmas ....

She had 2 friends she's known 45 years, i was bought up with her kids for the first 4 years, but they kept in touch right until Christmas ....

Mum decided to stop speaking to these 2 friends just because they decide to go to a wedding, the wedding was my mums ex partner who she cant stand anyway, but took offence cos 2 said friends even thought about going ..... (in the end they didn't go)

So, i've kept in touch with 2 said friends because they are lovely, down to earth people who know exactly what my mother is like .... mum hurt them badly by saying she wanted nothing more to do with them ...... they put her up when she had nowhere to live, gave her love and a roof and food ..... baled her out loads of times when she lost jobs, houses etc .....

Now A has cancer (dont want to mention her name here)and has been thruogh surgery. I called A last night to see if she's ok. She is recovering well, thank goodness. I asked her if she wanted mum to know. Her reply was she didn't think my mum would care anyway. She cant believe mum hasn't been in touch with me and says even if mum called her the friendship would never be the same.

I daren't call because I am scared of her rejection after all this time ...... but I need advice as to whether i should let mum know A has been ill ........

I wondered wether i should write a letter and tell her? 45 years is a long time to be friends and not know she has been very poorly ......

Could i have your opinions please???? TY confused ..... Jinny

What if mum finds out i knew and didn't tell her .....