We had a baby that was very hard to settle. He had reflux and would only go to sleep on me or being jiggled by DH. We did usually get him down before 10 but it certainly wasn't a case of chucking him in a cot at 7pm and getting on with our lives. If you have a baby like that, be very grateful!!! I also breastfed to sleep as it was his comfort (I also see nothing wrong with the phrase 'boob to sleep', it's got less syllables, you're tired, say whatever you want).
10 months in is HARD. We had a sleep regression then (although we'd never really had much of a sleep progression), and he would wake up at 1am and be awake for up to 2 hours! We were both exhausted. By then people's sympathy for your non-sleeping child has waned and they tell you to sleep train them. We tried controlled crying and he vomited with crying within a minute. Couldn't do any more.
What I'm waffling on about is that I get it from both sides. You're shattered. This baby has taken over your lives and by now you thought your lives would be in some kind of new normality and you could actually do grown up things. Your partner misses you and just hanging out together. He's not exactly expressing himself well but he's shattered too (although I'm guessing doesn't get up as much in the night if you're bfing).
Even if it means shutting the curtains at 5pm in July and keeping lights low etc to try and get the baby to sleep a bit earlier, it's worth it so you can both feel more human again and be able to make time for each other. We also found weekend naptime a good time for 'adult time' and would often jump in bed ourselves for a bit. More energy then too
. But obviously you want to do other things too.
DS is 2.5 now and doesn't bf any more but still can take a while to get through bedtime and go to sleep. It's often nearly 9pm when I finally get downstairs. He only naps sometimes too. Whatever those books and charts and the people who's babies sleep 12 hours a night and 2 in the day til they're 4, some babies just don't seem to need as much sleep! Really hoping the next one is a sleeper, I feel we're owed it!!