I mentioned a few times in the previous Brexit Threads....the majority of people in GB really dont consider, nay understand, the implications for us here in NI.
They read something about "stuff" happening in NI, or things "might" happen to NI and they simply dont care, not through malice but because its inconsequential.
Its easy to say you want to maintain the union of 4 countries as you think you are being patriotic or whatever....but the impact on NI has ZERO bearing on the day to day life of people in GB.
Anyone in GB who says they passionately want to keep NI in the Union is lying...or feigning interest....and its usually followed up with "well, if they decide to leave then so be it...id wish them well...the will of the people"....thats a cop out for really not caring and avoiding the difficult decisions.
As someone from a soft-unionist background NI feels like the needy little child demanding attention from its uninterested step-dad.....the will to remain in the UK, from people in NI is much stronger than the will to keep NI in the union from people in GB (does that make sense?)