She definitely crossed boundaries and now she is placing it on you! If she tells you you can call/text and then is pissed when you do, well, she set the situation up herself, so she has no reason to be pissed if she made it seem to you as though that was something she gave you the permission to do!
It probably wasn't great timing with something else she had going on, so she wished you hadn't called right then......and maybe was actually irritated with herself for setting herself up in a situation like that, seeing the consequences of her actions toward you but taking the irritation out on you. But it isn't your fault precisely that you were doing what she gave you permission to do......you didn't cross any boundary you didn't have permission to cross, no matter her irritation at having given you that permission!