You're very close emotionally, and maybe too close. This person is immersed in your emotional life, which could be a tricky proposition at best. They try to figure out what you're thinking and feeling, what you need to feel better, and so on, but they aren't able to figure it out because you are as hard to see through as smoke.
You should both try not to get so caught up in this relationship that you start subverting your own needs in favor of meeting your partner's, because you both deserve to get what you want out of love and to feel good. The truth is, while your lover is emotionally invested in you from the start, they might never know where they stand with you. One moment you seem -- and feel -- loving and connected, but the next you're remote, unreachable by any of the usual tactics. The funny thing is, you could feel as if you're soul mates -- without ever really knowing each other or having any real sense of understanding or trust between you. However long it takes for reality to set in, it does set in -- and your lover could feel disappointed and disillusioned by the fact that they've spent all this time and effort on someone whom they don't even really know.