When I first met my girlfriend we were chatting a lot and communicating very often. Now that it's clear we are in an exclusive LTR, I notice that she's not doing it that much.

Sex is great, I treat her like a slut and she loves it, she cooks anything I want for me, cleans my place, pays for half the stuff we buy (food included), organizes holidays for me when I tell her to, etc.

But, on a general day-to-day basis, we are not as communicative as we once were, but I do know she talks a lot with her girlfriends and family, on a daily basis.

If something happens during her day, she usually doesn't tell me until later that night, while before she used to keep me up to date on everything she was doing.

The other day her ex texted her something, and she told me, but she waited a day to do so. She showed me all the messages and shit, but again, it wasn't something instantaneous like "you wouldn't guess who texted me 10 minutes ago!" kind of stuff.

I'm not saying she's cheating or anything, she isn't, but is this behavior normal?