In today's episode Aditya already got to know that Suman and Shravan were best of friends and he noticed the unresolved feelings in their eyes..
He is testing the waters to see what exists between them...his comment to Suman on Shraman hardly talking and his comment to Shravan asking his views on Suman's lehenga are for the same purpose me thinks.
I am sure the kind of happy-go-lucky person he is shown in the show, he will or maybe has already sensed the tension between them which he will understand is a byproduct of the softer feelings they have.
About Aditya being a love guru, I think he can give Shravan a tip or two on this. While Shravan loves Suman, he is hardly out of the friend-zone with her in terms of his behavior. Apart from his disturbed state of mind attributed to jealousy, his behavior has hardly shown any signs of treating Suman like he would treat a woman he loves. Infact I am sure he is hardly aware that he is supposed to hint that he wants more than friendship from her and show her that he cherishes her and wants her for life, since he is still stuck in the post-10years-getting-back-to-Sumo stage.