My perspective may or may not be one that you're looking for but here it is:
My bf has a similar problem as yourself. He fractured his neck around age 23 and has been quad for 20 years now. He pushes himself hard to remain as independent as possible, and he's pretty darn sexy in my humble opinion!

We happened to meet in an apartment building that we both live in, built for disabled people. My disability is brain related. Long-term effects of untreated epilepsy, followed by brain surgery and traumatic brain injury.
I believe that our physical challenges make us more open and understanding towards one another. My bf does have "accidents" occasionally, which are very humiliating moments for him that he absolutely abhors! I never make fun of him, or get grossed out. But, I also used to be a CNA, maybe that's part of my tolerance?? Thankfully, my bf has been very understanding and tolerant of my poor memory and difficulty in decision-making, among other troubles. It has been a lot of give and take on both sides for us.