Hi, can I suggest that the next step you or your partner takes is to make contact with your local Respiratory Team. They may be hospital based but they also attend and have local clinics. They are more informed that your GP and you Gps practice COPD/Asthma nurse. You can self refer and after your initial meeting, they will either make follow up appointments or tell you how to contact them if you need them. They do make house calls so you can by pass your GP if your husband has a fare up. When you meet with them, as for your husband to be put on the next Pulmanary Rehab course. Here he will learn and practice the importance of exercise but also he will be give some really useful info on how to manage his condition and cope with flare ups.
In some respects, your partner is luck to be diagnosed at his age. Some folk are quite elderly when they get diagnosed and have little incentive to make any adjustments to their life style or start getting more mobile. You don't mention his age but the only real adjustments he will have to make are common sense ones we should all make as our bodies get older...ie. good, balanced diet, gentle exercise, looking after every aspect of your health.
I would put good luck but luck doesn't come into it....just a matter of making the initial push and taking it from there.