{Just a thought... the clicking noises when he feeds... has he been checked for a tongue tie? I know one of my friends' ds clicked a lot during feeding and it was a tongue tie.}
But that aside, a few ideas.
First of all, my ds was just like this after the first two weeks. He had his latch checked numerous times by several MWs and HVs and they all said it was right.
It wasn't.
He used to want to be on the breast constantly. If he wasn't... he would cry.
Unfortunately my dh was not supportive like you. He tried to pressure me into ff because ds' constant feeding was not leaving me any time to do the housework. Yes really.
It took me until ds was about ten weeks' old to find a mw who checked his latch and no it wasn't right, he wasn't in the right position, his lips weren't curled back enough... there were many things that were wrong! She improved it with her magic fingers... don't ask me how.
However it took me ten weeks to find this magical mw.
I would suggest a couple of things... first of all for your dw to find a mw who is supportive of breastfeeding. You can do this by phoning your local hospital's maternity ward and asking for the Infant Feeding midwife / Infant Feeding co-ordinator and going to see her. You will find many hospitals have a drop in breastfeeding clinic.
I would also suggest that your dw might want to have a look at this: breast crawl. It is how a baby can find its own way to the breast and latch on perfectly... they can do it while they are still newborn, weeks after the birth. You could also google the phrase "biological nurturing" which is similar, about helping baby find its own latch.
I would also make a suggestion that if neither you or your wife smoke or drink you might want to consider sleeping with the baby for all or part of the night, once you get baby's latch sorted out of course! Obviously you have to be safe, so no really heavy duvets etc. but it will make night feeds a lot easier. If you have a small bed, it might be worth considering that for a short while, you make a sacrifice and sleep in the spare room for a bit while your dw and baby catch up on night-time sleep.
Your dw might even want to try doing it during daytime naps so she can get some rest.
It doesn't sound pathetic at all. My dh turned into a wreck after our ds was born... he hid it by turning into 1950s man iyswim, but has finally admitted he has depression and is on ADs for it.
There are lots of organisations out there too that support breastfeeding Mums, some of them come out and see you too.
Breastfeeding Network 0870 900 8787
NCT supporter line 0870 444 8708
La Leche League 0845 120 2918
Association of BF Mothers 020 7813 1481 and 08444 122 949
Unfortunately as they are all volunteers there is just not the capacity for every area to have someone who will come and see you, but they can advise as much as possible over the phone.
As I say, your local hospital will almost certainly have a mw who is an expert in bfing... please be aware that not all MWs are at all, in fact they may say "breast is best" and even try and discourage you from ff... but be absolutely no help at all (that was my unfortunate experience).