If at all possible, split the phone bill. When the W took it on herself to pay for her own phone, that ended the snooping for me and helped me let go of obsessing over how much she texted a certain friend.
I would wager that LOTS of EAs are fueled by texting. It's a little secret relationship, right in their pocket!
My $.02 RRD
M:46 W:46 M:25;T:29 S:25; D:17 BD:12/22/12 D process begun:1/21/13 W moves out:3/1/2013
Anyone who isn't embarrassed of who they were last year probably isn't learning enough- Alain De Botton