NotQuite - In the cycle of abuse, the flashpoint is a highly exciting time of raw emotion, supercharged energy, a sense of being in the middle of something momentous! Then it all crashes down. There is pain, misery, loneliness, fear ... If you're lucky, you make up with a honeymoon phase with lots of oxytocin & serotonin. Then that settles, normal service resumes ... and it all feels a bit meh. Time for another flashpoint.
Suffering abuse in early childhood actually changes the brain's development, making us more prone to dysfunctional relationships and programming us to expect these cortisol floods. The same areas of the brain are affected, in the same ways, by cortisol and by amphetamines. Unfortunately, long-term high levels of cortisol can disable the immune system and many other functions of a healthy mind & body. If you're interested, have a look at information on the LHAP axis (limbic, hippocampus, adrenal, parasympathetic) and the HPA axis (hypothalamic, pituitary, adrenal).
Which reminds me to do a bit of my mindfulness meditation 