Does he actually have a relationship or just saying it?

My friend messaged the guy I had a crush on (pretending that I didn't know she did) and told him she thought we would be cute together. He responded saying he wouldn't be interested because he is in a relationship... the way he acts around me doesn't give me those vibes but it also took him 24 hours to answer her saying that. Wouldn't he have just said that right away if he was dating someone and not wait a whole day or is it maybe just a cover up answer to something else?

Does he actually have a relationship or just saying it?
Post Opinion