does heated arguments cause stents to collapse?

does having heated arguments cause a stent to collapse? my fiancee has had 3 stents put in and 1 collapsed after a heated argument between us. this was 8 months ago. recently we had another argument cause by pressure to relocated to another country. can his st. waves, lots of pvc's and high blood pressure  (205/125) be caused by this? recently he also had 3 teeth removed and is taking antibiotics for this. he had complication on one and they had to stitch his gums. he is also diabetic and doesn't have much exercise right now cos he's in temporary quarters while awaiting relocating. I just want to make sure cos he seems to be using this as a crutch to emotionally blackmail everytime we have arguments and I try to break it off with him.

[CCF HeartMD6]

Stress can often times lead to a surge in catecholamines which may result in an elevated blood pressure. However, this should not lead to coronary stents to "collapse." Collapse of a stent are usually the result of either in-stent thrombosis (via platelet activation) or restenosis (occlusion from endothelial tissue). The former is usually more catastrophic and results in an acute heart attack, and more often the result of noncompliance with taking certain medications (i.e. clopidogrel).

[YlocanaBelle]

thanks so much. but what are catecholamines? and can they also lead to a stroke?