Significant other got a dui after an argument what do I feel cappy?

So my significant other and I got into an agrugement. I was annoyed that he had been drinking and found 4 empty bottles of alcohol and one that was half full. He had rolled out of bed and hit the floor and his head 3 times. And couldn't really balance himself or walk right. We got I the car I took him up to the hospital for help he refused we got into another fight. Ultimately I called the cops cause got out of the car and was walking but had no right to be walking with how he was he did not want to go with the cops to get help. I asked if I take him home and he leave to go get more alcohol what do I do cause I know he's been drinking but don't know how much is left in his system. The cop said he could tell he was highly intoxicated when he spoke to my boyfriend and the cop said to give them all call ans they will watch for his car and if he looks to be driving weird they'll pull him over. We'll that I did I called him in for being behind the wheel drunk and driving. Thr cops pulled him over and arrested him for a dui and the public defenders office has asked for a jury pull. If this goes to court with a jury will I have to testify.. also what happens if i don't want to testify. Also i feel crappg cause I'm the one who called and got him put in jail.
Significant other got a dui after an argument what do I feel cappy?
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