So DH's dad (FIL) remarried about 10 years ago and he now lives with his new wife (my step-MIL)
FIL has a tricky relationship with his ex-wife and her family in the sense that he still likes to keep in with them but is scared of his wife and how she reacts to this so he reluctantly avoids ex.
FIL has 2 children, my husband and his sister.
Step-MIL doesn't like my SIL and her family.
Over the years myself and step-MiL have bonded over certain aspects of the family as they are quite dysfunctional and I have always understood her feelings towards them since I have always found them difficult as well.
Only issue is she has become very clingy to me, she messages me most days, and she wants to know everything that's going on with my MIL and SIL and wants to moan about them a lot.
I have 2 children of my own, a busy job and lifestyle and I'm starting to feel irritated by her constant messaging. She doesn't seem to have anything else going on in her life and just wants to be bitter and moan.
Her DH (my FIL) isn't aware of the messages as well which makes me feel very awkward.
I've tried responding more slowly, and shutting conversations down more but she still messages me daily. Usually stuff like "have you seen these Facebook photos, they're pathetic!" Etc
It's really starting to bring me down, how do I deal with this?