I agree that it is not best to withhold that info. If it was someone that wasn't so closely related, maybe it wouldn't be a relevant to tell him, but I'm sure your H knows your dad well, and I'm sure if something crazy happened, he would be hurt that you didn't tell him about the heart attack and procedure.
I don't see why H would be a jerk about it...maybe he might be selfish at first, but I think overall he would totally understand and would probably want you to be with your dad.
Me 33 H 34 S9 S3 M 6 yrs (2gether 11 yrs) EA/PA 1/2006 DB 5/2006 H wants D 6/2006 H wants ME 8/2006 H "said" PA/EA over 8/2006 H erased OW off phone! 2/2007
"It is far better 2 choose humility & change oneself, than 2 wait in vain trying 2 chang someone else."