Patty, I have C-ptsd and life is not taken in stride as it was before. I have been "different " for 10 yrs now. This month, my father passed. At first, I couldn't believe how I handled it all so well. Now another nerve rattling piece of news just hit me and I am way out of whack. Sometimes we cannot tell what affects our mood so dramatically. In retrospect, it may be two huge stressors hitting me too close to one another and I just shut down for now. Talk to your new boyfriend and ask him to confide with you about any events or things that may have upset him. He may not even be aware of why he is feeling emotionally strained. Maybe his interaction with his wife will take time for him to process. We, the affected, do not see clearly all the time why our emotions change our actions. That is the value of a good therapist or close personal friend...to help us sort out what we may not be able to from our inner perspective. Most important is our need for a supportive person who will not criticize us for being confused.