I might be wrong but I would bet the leaks aren't coming from Colts employees. Most likely reporters and scouts seeing for themselves the apparent attention Love is receiving from the Colts. I would suspect just a case of them putting two and two together.
Here's the one I just did on fanspeak.
I would absolutely love this...
Assumes AC comes back....
13: R1P13 DL JAVON KINLAW SOUTH CAROLINA
34: R2P2 QB JORDAN LOVE UTAH STATE
44: R2P12 EDGE JULIAN OKWARA NOTRE DAME
75: R3P11 OT EZRA CLEVELAND BOISE STATE
119: R4P16 WR DEVIN DUVERNAY TEXAS
160: R5P14 TE JARED PINKNEY VANDERBILT
193: R6P14 CB LEVONTA TAYLOR FLORIDA STATE
210: R6P31 WR CHASE CLAYPOOL NOTRE DAME
227: R7P13 WR MARQUEZ CALLAWAY TENNESSEE