He tell's me he doesn't know how to feel. He also would rather me talk to him in person about things instead of in text. During texting he says " Ok", "Idk", "yeah" "Okay kinda" and sometimes when I ask about his day or what he's doing he usually answers with more than that and with other topics a sentence maybe. Tells me he's "going to sleep " a lot and sometimes wont answer for like 3 hours. Should I be concerned? Does he like me? or does he not? or is it the alexithymia. Please help