Is this considered toxic behaviour?
So I've got off playing a normal everyday game of league of legends, we lost but that's no big deal. The dilemma I have is that I apparently offended one of the players in my team, the support Janna, because I was (in her eyes) arrogant enough to recommend her to save mana for her shield. Now I know she's a better Janna player than me and during our last fights near our nexus when we were arguing I even told her that she was a better Janna that I ever was but she still proceeded to get extremely 'triggered' and tell me to "don't tell her how to play her champion" repeatedly. After post-game she added me and I listened to what she had to say, she was still triggered so at that point I just blocked her.
Was I in the wrong? What should I do next time I want to give a tip/recommendation to a teammate? Answers would be nice.