From personal experience, I can say that it is completely possible, at least with some women. I made the mistake of doing the whole "I know you don't like me, but I have a huge crush on you" thing once, in high school, and it was an unmitigated disaster. You are basically gelding yourself right in front of her. I agree that was a mistake. But now it's done and cannot be undone. My point is that if after that lame-ass SMS love declaration, she is interested in spending time 1x1 with him, then it's actually a good sign (she may actually be into him). Girls who are trying to fend off guys they're not interested in generally do not request to spend some time with them.