vunil,
But why do I have to have nothing for them to be happy?
I do not know the background of your family.
Relating to my own story (2 envious sisters, no communIcation for over 18 months, they don't have my e-m nor phone number), I believe that what is behind all that is :
-my parents always tried (and succeded) to put competition among us
-Nmother "replays" her conflictual relationships w/ her 5 siblings thru her 3 daughters. She acts like her own Nmother acted w/ her 6 chidren, i.e setting them up against each other to get power (N supply).
-Power hungry Nmother has understood she would control us better if she divided us. She totally f*cked up my attempt to make up w/ younger sis 2 years ago, as if she was jealous of a potential good relationship b/w her daughters.
-Powerless father could only identify us with his mother and her 2 sisters (horrible fights until the end of their lives).
-Older sis has admitted envy is her worst bad quality. she is envious of her friends also. And badmouthing as well.
-Younger sis is jealous more "unconsciously", I think. Since there is only 1 yr difference b/w her and me, and from the history of the family our identities have been enmeshed from the beginning. I think she feels she can exist only if she can put me down and/or project all her bad feelings (badmouthing).
-the unresolution of the Oedipus complex (fights to get the parents love)
-Sis' need to feel "the best"/perfect/unique in my parents'eyes (N entitlement)
In my family, whether on the father side or the mother side, at whatever generation level, siblings = jealousy, cruel fights.
The source of this: the inability of Nmother to see her 3 daughters as separate individuals. Father discarding the issues.
He regarded this as "females stuff" and never played his role of stating "The Law" i.e. what is right and what is wrong (instead, it was anarchy style).
Knowing how dysfunctional my family is, I have become pretty pessimistic about it. Like nothing can be done (as far as they are concerned).
But
I can decide which level of relationship to accept. It is sad, it was hard at the beginning, still when some memories come back

But I have endured too much, and I know feel more free.
I do not have any intention to share any info w/ any of the 2 sis. They can't say anything about me anymore, they do not have their scapegoat. Too bad for them. And I now keep minimum contacts w/ parents (through letters only, nothing personal anymore, for now). Just getting major "self-protective measures"... Took me a long time, but I guess I had to.
Little by little I feel I regain my balance...
I hope this helped.
Best,
-RL