@Lizbeth02,
It would be quite upsetting not getting the support you need. When you experience life changing events, you want to talk about it, and for your partner to understand how upset / worried / nervous (etc) you are.
Your partner acts like nothings happening, and changes the subject. And this makes you feel like he doesn't care.
To make it worse, when he's sick, he wants to be babied (actually read 'mothered') and be the centre of attention.
He does in fact, like being fussed over and
mothered when he is
sick. However, for more important things (life changing events that he doesn't want), He may well prefer not thinking about such things until he has to....he probably prefers being distracted by his friends...and so when you face such events, this is what he does for you.
Another possibility is that he may have bad experiences with sympathising with people in such circumstances. What if his mother used to get more worked up, the more someone talked with her about such an event? What if what worked for her, was distracting her, so that she didn't have to focus on it?
Some people, when they focus on a problem, become more and more worked up, or perhaps,
overly emotional about it (you see this somewhat in him, so it may run in his family).
These are of course, just suppositions. The only way to find out for sure is to have a open, honest talk with him.
Hope it helps some.