OMG Jon pure rage when they killed Viseryon...he adopted them already as his children too, i'm dying. Also him seeing the WW aiming at Drogon and telling Daenerys to go because he wanted to protect them at all costs, i'm just...why so perfect Jon? Like for real, give to me a man like this lol
Yes, not only did Dany tell him that they are her children, but Jon felt an emotional connection with one of them. He’s been in awe of them since he first landed at Dragonstone and to see one of them get taken down in such an awful way made him PISSED.
His main reason for getting so angry was because of how hurt Dany would be. The first thing he says when he wakes up from a several day coma is an apology, asking for her forgiveness because the plan got one of her babies killed. Then when she says that they’re the only children she’ll ever have, his face lowers again. I read his expression as guilt.
LOL, and yeah, I need me a man like Jon too.