Sorry that you’re feeling sad and a bit of a crossroads. I always think breastfeeding has these moments of loving it and hating it, and then feeling sad / guilt at wanting to stop. It’s all normal, and if I can recommend anything, it is to acknowledge and accept the feeling(s) and go with your instinct 24 hours later.
I do also agree with @OoohTheStatsDontLie that night weaning maybe a half way house to ease it for you a little.
We followed a gentle method from a blog (which was recommended to me) to get a bit more structure during the night so baby wasn’t so reliant on me www.drjaygordon.com/blog-detail/sleep-changing-patterns-in-the-family-bed Many people have talked about this method on MN and in real life, and it does work and you can alter it for you (we didn’t follow it to the letter but made use of the info in the blog)
Just in response to point 4, I do call a bit of BS. Bottle or breastfed, babies’ generally attach to one care giver (normally the mum as they take time off work). Baby will be prefer one parent over another and in turn maybe clingy, but no different to a bottle fed baby. I would certainly recommend starting early with your partner being involved in bath time, bed time routine etc with you on ‘standby’ to feed, but importantly, to leave and allow baby to be used to someone else. It’ll help (it may not solve) the concern about your baby being clingy if you continued to feed.
My experience is that DH was fully involved in bedtime, and certainly at that 8-9 month mark, I made DH step up and stop using the excuse that baby needing feeding! I printed the above blog out and gave it to him, and we set a little routine of milk downstairs from me, him taking dd for a bath, stories, maybe more milk, and then patted to sleep by DH. Didn’t always go that way, but it helped (for us)