What does this mean?- the WH's regrets?

[gatsby11]

Thanks for your comments, guys! I agree with NM's last post. It's mixed!

Okay, so. Two things quickly.

1) Last night we brought little girl to the ER. No big deal really, just projectile vomiting and grunting. They said she was okay, and we have a doctor's appointment this morning. Anyway, WH and I were sitting in the little room by ourselves for about an hour. We had a bunch of small talk, but then I asked him if he was 'okay' because earlier in the evening he seemed upset. He dismissed me and said he was fine. But then 25 minutes later or so he said that he feels like such a horrible guy. That SIL's H really wants kids. . . and that he feels he (WH) will never be happy. That's when he started crying again. I said that he will be happy someday. He said he didn't think so. We had some silence and then moved back to small talk.

2) What I need to say to him:

* My 'side' briefly to explain why people have some difficulty with him (maybe this isn't necessary)
* That even though she and I have a different last name, we can still all 3 of us be a family
*