Co-sis coming soon-want to give her some feedback.Should i?

ladies. thanks a lot for your answers.
Again have some more updates (apologies if it gets long and boring,but u r the only ppl to whom i can vent and ask for feedback)..I joined my hubby in US..so not much interaction with the in-laws..
1) my Co-sis had initially told me that she wants to resign coz she wants to completely spend time with my PILs. I call up my PILs every saturday. (just once a week,but i do it to keep things sane with H). So my MIL says "N is looking for a job.She has registered in some sites and attended some interviews"..And in my mind I go "he he he.what happened.enough time spenty "fully" with in-laws?" But it does nag me in the back of my mind that she never told of this to me.Well,I give her the benefit of the doubt - may have forgotten,or feeling sheepish that she contradicted herself.I decide not to care
2) She whatsapps me "I am going to bangalore on 27th. for four weeks. Going to spend time with my sis and cousins.Atleast I can escape from here!" . I reply "cool enjoy.say hi to your sis from me".
3) She calls me. YES, does an International call to speak to me.And says "i am now at my parents place.It was so horrible there deedi.blah blah blah..yada yada yada..but you know, when i was going to leave, MIL became very senti. You know, she even called me today 4 or 5 times.When she was going to make tea in the morning,she called me and said "I remembered u since u make tea everyday"..When i heard that i also felt bad...etc etc".And 'ting!' a thorn in my heart. Coz my MIL has NEVER called me when I was in india.She would call and say "hello, is diya (my dd) there?I want to talk to her". NEVER called to enquire about health. Even when i was hospitalised during pregnancy/had a surgery..Never called me at all..SO I feel my first pang of jealousy...And then I wonder" Jealous? of what? for the attention of my MIL whom I actually have a very superficial relationship with? What would my fellow IL forum friends think of this..they would all ask me to forget about it and get a life"(seriously - this is what went thru my head). And I was happy
So conclusion of today's incidents - let co-sis and MIL bond as much as they want, or fight as much as they want. I would like to remain the outsider and watch as long as they dont drag me into some unnecessary fight..Much more at peace now!!!

 

ok..am back with co-sis updates..I just need to vent!
Todays whatsapp
N: "Hi deedi.how r u"
me: "good.how are you?how is bangalore trip?"
N:"enjoying.missing H though"
me:"oh dont worry.How is R(my BIL)?"
N:"he calls everyday.but still i feel like he is neglecting me.i m super possessive about him".
Me:"smiley . what is the status of ur visa? ( I know stupid me.should not hav asked anything)"
N :"Oh i dont know. I dont think he is taking me with him. He says he wants someone at home and that he does not want to leave mom and dad alone. I also feel the same,I should support him if he wants to take care of his parents".
Me : WTF????? (dint tell her..just remained silent.did not respond)
N: "You know, R told me that i should be a daughter and not daughter-in-law to mom and dad."
Me: "good. isnt that what we all want"
N: ok..then.catch u later.

I dont know if this was a normal conversation and the last two comments somehow seemed like an indirect taunt to me. But I m really really irritated with the comments.I cant tell anyone else..so this is the place to vent!!!! sorry if I seem crazy!!!