No, I think you're in the right place. Your post may have just been missed.
I had 3 MCs between Ds1 and Ds2 - each one was quite early, one happened just as I was going for the early scan, which was a bit upsetting - but I made my peace with each of them on the "que sera, sera" basis. That there was probably some reason each pg failed, that it's pretty common, that I was over 40, that there was till time... and yes, I think fell pg with DS2 and he stuck around.
Things that helped me included talking to others who'd been through similar, including one fabulous MN friend who told me that for each MC she had, she'd bought herself a little ornament as a memento - so I did the same. I have 3 tiny crystal angels, each of a different crystal. No one else knows what they're for but they're important to me. Some people like to join FB groups for "angel babies" - and then if they get a "rainbow baby" (a live birth after a MC/stillbirth) there are groups for that too.
Would I have made peace with it so easily if I hadn't got DS2? I don't know. I think, because of my age, I would probably have accepted it as "too late now" eventually - but I don't know. Can't know.
I know another lady who had 1 DC and 13+ MCs. She is amazing. To put herself through that shows a lot of strength. Eventually she did accept that no. 2 wasn't going to happen though.
You don't say whether or not you already have DC but I'm guessing that you don't, that this was your first child? Much harder that way. I have a RL friend here who had 3 MCs before she got her "sticky" and had her DC - and then she stopped, as she couldn't handle the upset of the MCs again. She too was over 40.
Please keep talking to your partner - it's upsetting, but there are so many options available these days, that it's a bit soon to be saying "no more trying" just yet.
As another "hint" - I truly believe that improving my vitamin D status helped DS2 stick around - low vit D is associated with both infertility and MC, and mine was about 2/3 what it should have been (well below normal range) so I took megadose vit D and ta-dah! Ds2. I must emphasise however, that this is only one possible factor - but it's one that's fairly easy to sort out by supplementing.
Good luck and I hope you get more answers. 