Yeah, it is canon that when Havok sucker-punched Polaris with his powers, he was not under mind control like he was 'supposed' to be, and that most fans would prefer. The canon is, at least currently, that he was "undercover". And this hasn't been addressed since.
Ultimately, these two have been put at odds so frequently. There's something to be said about the importance of their relationship being represented... but the perpetual hope and need for them to be separated and kept apart. I would be more than happy with them building on the friendship they started developing in the Krakoan era... but I never want to see them romantic again.