No. I don't believe he confided in anyone about it. I noticed the lovelorn expressions he'd make upon seeing you with Thor. Oh he recovered quickly, but I noticed enough to confirm my suspicions.
I don't remember a lot, but I remember the look in his eyes. That man will love you for eternity. I'm sorry it took this long, but savor this time, Sif.
I myself am meeting my husband again for the first time in centuries. I'm not nervous, nope.