A comment in a hot thread at the moment made me think of this.
You know how a (prospective) romantic partner bitching about their crazy ex is meant to be a big red flag that they're actually the one with issues?
Well, what if you really did have a crazy ex, what do you say? Especially if the relationship was abusive.
a) Nothing, as it is unseemly to speak ill of others and only reflects badly on you;
b) Nothing, because you are painting "vulnerable target" on your forehead for future abusers;
c) Say you left an abusive relationship, and be clear to new partner/prospect that you will therefore be insisting on complete respect now;
d) Don't say the "abuse" or "DV" words, just describe factually: "Oh, he did X, Y and Z behaviours, wasn't remorseful or inclined to change and so I left."
e) other?