The truth was better than what he had suspected? (SPOILERS!)

I just can't believe it doesn't seem to bother anybody that Lucy was a THIEF.
We're supposed to think Ian was so out of line to suspect her of having an affair, but was that suspicion really so much worse than the TRUTH - that she was a thief?
And the things she was stealing were not things she needed, just frivolous pretty things that she wanted, and somehow she felt entitled to take them from their rightful owner. That is a serious mental/emotional problem.
We're supposed to believe she was a wonderful wife & mother, but what if she had been caught? She would have humiliated her family whom she supposedly loved.
What if she'd been sent to jail? She would have deprived her children of their mother.
Which she did anyway, just because she could not get her dream job. Again, she seemed to feel entitled to have the lifestyle she wanted just handed to her. Just like she thought she should possess things she had not worked for, she thought she should be given a job she was not qualified for. And then, instead of finding another job so that she could provide for her children, or working to obtain the skills to get her dream job, she committed suicide.
I honestly would have had more sympathy for her if she'd been having an affair. Not that I approve of infidelity, but stealing and approaching responsibilities like a childish brat when you have actual children who need you is at least as wrong as infidelity.
And what was up with the woman at the funeral who spilled the scoop about Lucy being a kleptomaniac? This woman said she was shopping with Lucy and witnessed Lucy stealing, yet the woman did nothing about it: She did not confront Lucy or tell Lucy's family, so they could seek professional help for Lucy and make restoration to the store. Instead the woman just stopped going shopping with Lucy. And then gossiped about her after she was dead.