155/80 is a little elevated, but not an emergent number. If it were myself, I would wait to see your regular doctor as he will discuss the issues with you and possibly give you medication.....the ER probably wouldn't do anything for a blood pressure with those readings. If you are worried, by all means go, but I'd wait.
My bloodpressure, has averaged 155/80, this past week. I have never been on medicine for this. Should I go to emergency room soon or wait until Monday to see my family doctor?
You've mentioned you are dealing with both medical and boyfriend issues previously.
If you aren't being seen by a doctor on a regular basis, this would be a good time to have someone evaluate whether this is physical or stress related---or both.