Really don't know what to make of it & unsure if i should undertake a possible task!

OK so I have been divorced a year now, we spilt the year before. My ex blamed everything on me while in fact we were both at fault. I totally lost respect for him now. We have had no contact since (except a random bumping into each other but no confrontation - we just both acknowledged each other & walked off)

After the divorce my ex mother in law kept in contact which i was a bit uncomfortable with but i was close with her & know she's a good person, my fall out with my ex should not be taken out on her.

That said we haven't been in contact for 6 months... until my birthday last week, she sends a message & mentions she sent a card in the post.

She was always really nice to me but unsure why she wants to keep contact. It is painful for me as it reminds me of my ex but i feel i can't say anything to her.

My parents reckon that she knows her son's fault & that i am a good person & the total blame wasn't to be rested on me.

Also, on a side note, my ex mother in law is into crafting, making cards etc in the past my dad has given her some paper & card that he had collected over the years & can be used for her crafting. He has recently found more & asked would it be ok if we should give her the paper & card if she wants it. Again, she shouldn't have to suffer for my & my ex's break up but is it a good idea to give her the stuff? I would because of her but don't want my ex to think I'm trying anything to get back with him - i want nothing to do with him!

I know this might be a random post but a little reeling from emotion to her texting last week...

Any thoughts....?