Actually, be happy about these times of vulnerability. They remind you of the NEW Bolt. If you put yourself into a position that you can't be hurt, then you can't be loved either.
As far as the text, take it as good. She, at least, acknowledges that she is hurting you. That's important. She cares about how you feel. I know about a dozen people on this forum who would cut off a limb for a message like that and for good reason. They need their feelings validated too. That's what she just did there for you.
Ok, this is where I am so pained to say what I am thinking. The book, so very, very sweet. But, maybe this is what she means by smothering? I don't know? I'm just thinking about that comment and wondering what it meant? Do you give her a lot of gifts? Maybe back off on that. This way you still can give her emotional support, but she doesn't feel like she owes you anything for the gifts. I don't know, just a thought...