I like Cole and am not bothered with Sera not liking him (And I'm loving Sera so far)
Characters not liking the characters I like doesn't hold any change in my opinion on them because all because I like a character doesn't mean they have to be 'perfect' to what I'd want from them, or who I'd like to get along.
It didn't for Morrigan. I loved Morrigan and I loved Wynne. Morrigan never got on with Wynne and it didn't change how I loved either characters. Maybe a part of me wanted them to eventually see eye to eye on somehting, maybe Morrigan realizing Wynne is worthy of respect--but nope. And it fits Morrigan.
Another example, Jack and Miranda. I love BOTH the characters, they didn't get along.
To the point; Sera is still awesome to me.
This is just how I feel. And I'm not saying anyone is wrong if they do change their opinion 83