Asking the guy if he lost interest... is it a good question to ask a guy?

today i asked the guy im dating for a month now if he lost interest in me b/c it seems like it & he didnt give me a straightforward answer. just that he's busy and hasnt had time. but thats lame too b/c he used to text me "hi" and "good night".... now i hardly get any texts. i wonder if asking him today if he was still interested in me might have looked like a compulsive and needy plea for attention. What do u think?