I'm in a similar position with two teenagers in boarding school in Auckland. Two week quarantine at each end makes bringing them back for school holidays impossible and the New Zealand border closure means my wife can't join us. Pulling them out of school is something we definitely want to avoid at all costs given the impact on university aspirations which leaves us split for the forceable future.
Desperately hoping that we start seeing some travel bubbles without quarantine requirements open up between places that have both very low rates of local transmission and robust testing and tracing regimes sooner rather than later.
I'm watching the new Baltic Bubble and the proposed European travel corridors closely – it's possible that they may end up being a litmus test to see whether some degree of international travel without quarantine can resume .... or not.