turq is right, some people dont have the mental strength and toughness to deal with trolls so they have to block or ignore them and thats okay. you need high self esteem and a good past with a good family and good dating experiences to cope with cyber bullying of this level. when you are full of emotional scars and broken from the bad partners and people in the past and been a victim for a long time you find it hard to cope and thats ok. theres a place for fragile sensitive people in this world too.
Some people can't animate failure or weakness very well. So they go missing for a time to make up for their own needed therapy.
She on the other hand can project some sort of opinion but believe me she gets offended when her cat gets surely skinned.
People take breaks here and they always come back...