Am I in the wrong?

Ok so I was playing random battleground duos and I came into a game where I was Galakrond (hero power 1 cost increase a minion to one higher tier).
First turn I was able to get a minion for 2 gold with a spell and use my hero power on a minion in the tavern and a undead knight came up. My random partner started right clicking like crazy asking me to send the knight over because he got one tier one minion that was undead on the first turn.
Turn two I used my hero power again and pushed it to a tier three. He threw a fit and sold his minion. I stayed in the game and kept upgrading until I got a tier 6 which happened to be undead and figured since he was still in the game I would pass it to him. He pretty much gave a big “(bad word) you” and sold it.

My thought process with his hero is always being a minion to tier 5 or 6 and then whichever it best suits out of my team that’s who gets it. I try not to look at short term gains over long term gains because I have won first place with one health.

So I ask am I wrong and should I have sent the knight over?