Being punished in ARAM for not wanting to trade champions?

I just finished a pretty good game of ARAM where we actually won (Ori -3/2/22) . But here is my issue, one of my teammates started trash talking the other team because of how good he was (Zil -12/3/17) and then proceeded to inform me as to why he never ulted me when I was going to die. He ulted everyone except myself, which I thought was odd since I barely talked in the chat so I wasn't being negative or rude he had no legitimate reason as to not to. Then he said this "I never ulted Ori because she didn't trade with me" and "I would have done so much better with her". Why because I didn't want to play Zil I had to be punished by a intentional lack of teamwork with me. Heck I even got him a triple kill (He stunned and I ulted them all and when the 2nd bomb went off they died). This isn't the first time that because someone didn't get the champ they wanted they decided to then instead hinder the team in some from. Cmon people, it's ARAM, it's random for a reason: your not going to get your main every time.