Ashley Tellis Ping
As for the relationship part, the simple question would be what relationship? India has already spent billions of Dollars on American equipment, and will spend billions more. Missing out on the M-MRCA deal will not break any relationship, and for the matter a lot of money is heading Boeings and Lockheeds way. Billions of it. Thus, the argument that India did not settle for a relationship is moot.
India made the best choice the Eurofighter and the Rafale were the best choices, and this will be seen more and more as time progresses (both in terms of aircraft development, as well as technology infusion into the Indian aerospace/defence/advanced sector). The F/A-18E/F would also have been a good choice all things being equal (and all things were obviously not equal). As for the F-16, I still maintain that the only aircraft that would have been a (far) worse choice was the MiG-35.