How has your facebook activities affected your relationship?

Ok peeps, lets talk seriously a little.How has facebook affected your reltionship?I read in the paper sometime ago that a man killed his wife because of her relationship status on facebook. Hmmm, has it affected your own relayionship? Please share with us how your partner's adding of friends, writing on people's walls, etc has been a source of concern to you.This is an extract from a mail i just got from a close friend,i had earlier invited her to join our group but she didnt join, i then mailed her to know why she hasnt letting her know the group is for both married ans not married, though she's not married and she told me..."look femo,its not that i dont want to join but my man has been complaining about my activities on facebook, he feels someone will come from nowhere and take me from him. He doesnt want to loose all he has invested on me lol"is something like that happening in your relationship? how have you managed it? please share with us here. thanks...