Hi Tabby... I'm sorry about your circumstances and at the same time, am glad that your husband didn't succeed in taking his life. I commend you on finding this safe internet haven - you may notice that there are some posts at the top of the main page called "stickies"... and they are very useful posts in helping you understand the demon called suicide.
That said, I hope you are reaching out to your own doctor and/or therapist to talk about this life-rocking experience... its going to be a tough go, I'm sure.
Its coming to a long weekend so you may not find many folks posting here but please don't give up on us... just keep reading and learning all you can about what you're dealing with.
Why is it guys have such a hard time taking meds, I will never understand
I'm on celexa, too... and recently upped it because I was feeling that pull to leave this world... thankfully that and dear friends have lifted me up again. (under a doctor's care)
keep us posted and hang in there
Addy