Oh you poor thing OP.
I did read that book, and there were a couple of things that made me think (he is capable of using a phone, if he wants to, etc) but tbh it comes down to how the man behaves, because some of them DO expect you to call them a lot, or think something's wrong when you don't, but then they don't dignify your texts with a response when you do.
So you never know where you are with them.
I had almost a year of this with my ex, (who was very nice) and finally had enough of it and decided to stop making contact. He did eventually a few times and I kept saying no thankyou when he asked me to meet for coffee etc. I just made excuses. I felt so much better for stopping.
Then I met someone else and it's been really clear how much this one doesn't mind me texting, how much he responds when I do, how much he wants to be in contact and doesn't find it annoying or a chore. He initiates contact far more than I do. It's wonderful.
The only thing is, I've learned to stop myself from initiating anything because of ex, and I realised that when you're constantly having to watch yourself for doing it 'too much' (according to them) it's because you're insecure about the relationship, and this might be because you're innately insecure, which will or won't put the bloke off (if he really likes you it won't - but he might be the typewho goes for insecurity, not good if so) or it might be because the bloke is giving you fair reason to feel wrong footed, as with ex, by not replying when it would be normal, or polite to, or by causing you to doubt his level of interest in other ways (insisting he only wants to be friends while still trying to f*ck you at any opportunity, for example, or confusing you in any other way - even if he doesn't mean to).
I've found that being secure in the knowledge that DP really wants to be with me, and to be in contact, has made me lose the impulse to text or call at all times, because I know he'll do it to me sooner or later anyway and he's always going to come home. So even if we go for a day with only a good morning and a goodnight, it doesn't matter. We each know that the other is thinking of us, and just because we're a long way away or he's busy or I'm busy, what there is between us is constant. So it's Ok.
I hope you manage to feel better soon Daisy. I know how hard it is.