This makes my face red even at my age, but I want to chime in.
Rick and I are 60 and 61. I am the CALS, he the PALS. We have been married only 2 years. (his first marriage, my second after 38 years)
He doesn't have any problems in the bedroom. In fact, how's.... well, I won't say anything about that, I guess. I'll say this.
When we were first married he was only 2 months from his diagnosed. We accomplished many intimacies a week. I will say that we have to compromise positions and stamina, but no problems with erections or lasting ones.
We find that we have to recline together during intimacy... in several different ways, as his legs are weak and my arms are painful with severe carpal tunnel. I am sure you get the idea.
We are counting on many years of marital bliss, and as all newlyweds hope, we don't want the bloom to go off the rose. We talk about "what if" and have decided that we will
accept whatever happens.
We see ourselves in the future, telling all caregivers to get out of the house for us for a while...... Oh, say every other day!