Um… what does this mean?

So... my friend may have by accidentally told my crush that I liked him... and today he came up to me and stared at me for ten seconds straight before saying "by the way, [name redacted] told me that you had a crush on me. Kinda suspicious."

(Yeah I already knew he didn't like me back so nothing new)

What did he mean by "Kinda suspicious"? Like he is suspecting that I have a crush on him but not sure since it came from my friend?