Life can be sooooo cruel in the "blows" it deals us Iain. You've experienced so much heartache recently - not helped by the Embassy's refusal of a visit visa for your fiancee - and I genuinely wish it were possible to wave the proverbial "magic wand" on your behalf.
This forum is a blessing in very many ways ... because it enables its members to "let off steam" whenever things seem to be getting on top of them.
Yes, undoubtedly ... blood's thicker than water, and your daughter's emotional wellbeing is your first priority. But it needn't be at the expense of your long-term happiness! Why don't you have a heart-to-heart chat with her? There's a great deal of truth in the time-honoured saying, "a problem shared, is a problem halved"! And you might even be pleasantly surprised at the degree of sensitivity she shows towards her dad's inner turmoil - young as she is.
Is there really any point in fretting over the Government's latest proposals? Worrying about matters outwith our control isn't going to change things ... and can only exacerbate feelings of anxiety and stress. Besides, it seems you have a staunch ally in the shape of your Lib Dem Councillor - in the worst case scenario.
Know, too, that here, you are among friends whom you can rely upon for support.
God Bless.