I dont know if it was on purpose but hes just not a likeable character. I enjoyed the story and I know hes had a ****ed up childhood but hes just angry and rude to everyone he meets.
Achilles while being a grumpy old man seems to really care about him and Connor just throws it back in his multiple times because of his arrogance.
Its onlt after the end of the Homestead missions that Connor realises his mistake and grows up a little bit. --- HOLY ****! What is this? Forged in Gods very flames! Do mine eyes tell me lies? A new Elder Scrolls game? Time is nigh, I must fly, Venture forth on my quest!