I'm a bit confused. You paid your friend some BTC. Your friend uses Electrum while you don't. Your wallet doesn't allow personalized fees. How, then, did it end up that a very low fee was paid? Also, how did it end up that you're the one paying and yet your friend was the one asking the level of fee? And you answered the lowest. It doesn't seem coherent.
I still tried to understand that part of ops story but haven't gotten it yet. I just find his story unbelievable. His question is valid though but the story op is trying to tell seems to me a fabricated one. If we remember closely, during the time of recent halving the transaction fees were extremely high, probably the highest we've seen. And for someone to broadcast a transaction and get confirmed back then would mean that he already knew what level of fee he will have to use. Ops story just mixed up so many things I still don't want to believe here. He ask his friend to send BTC and told him to use the lowest of fees that they should wait for it, that it will be confirmed
one day ![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
And if his friend is the one sending the coins why ask him the level of fee to use??