This interesting list has 17 strategies that individuals and couples can use to strengthen and support their relationships has been distilled from over 1,000 relationship studies.
This listicle describes 7 common cognitive fallacies that we are all susceptible to. I particular like the downloadable poster at the end.
This article describes 16 steps that relationships go through prior to a breakup. This is certainly not the experience for all, but it is common enough that it’s worth reading and becoming familiar with the stages.
And finally, this is my favorite concise list about signs that you’re being gaslighted. Still gives me the shudders.