Aw, thanks Natasha!
how did you respond to the lack of respect for you?
Quite simply, my DP and I both entered our relationship with the mindset that was an enhancement to our lives, and if at any time, either of us were more unhappy together than we would be on our own, then that needs to be brought out into the open. We are not scared of acknowledging that in order for our relationship to survive, we have to work at it; we do not take our love for each other for granted, and we know that we have a family dynamic that significantly increases the risk of our relationship failing.
It means that we are totally honest with each other, and our opinions, even if exposes an issue that could be a deal breaker. We don't bottle things up and seethe quietly - if DP is frustrated because my DD has left the house lit-up like a Xmas tree for the third time in a week, he tells me, and we discuss it, agree an approach, and (as it's my DD) I lead on it.
When we first got together, he was a Disney Dad, who acquiesced to his ex at every turn. No-one was happy with the situation; not me, not DP, not the DC's and not his ex. DP and I agreed that our relationship did not have a long term future unless we 1) attended parenting classes together, and 2) he sought a contact order to stabilise things for his DC's. Had we disagreed, then our relationship would have been over.
Parenting classes led to discussions about our parenting values, his role as a NRP and a step-dad, my role as a SM, and we agreed some common boundaries in terms of house-rules, behaviour etc. We remind each other if either of us fall down or slip up - so if my DD is rude to DP, and I don't pull her up on it, then DP's issue is with me, not with DD. If I think he's being too Disney and is motivated by wanting to be liked by his DC's, I will remind him where the mickey mouse ears are 
We share our values, boundaries and principles - we don't always agree, but we thrash things out between us until we reach an agreement. We both know that if we deliberately undermine or fail to support the other, then the relationship would be over.
On a personal note, I do not have an emergency fund, or exit strategy, although I know some SM find these reassuring, and I did keep my house for a few months after first moving in with DP. Having survived a very messy, and financially disastrous, divorce, I am confident that whatever happens I can deal with and it isn't something I plan for 