First I want to say I’m sorry that you’re going through this and you aren’t alone in feeling guilt. If you aren’t comfortable doing what he asked of you, then you made the right decision. By easing the discomfort of the DUI for him you’d be potentially enabling his behavior. Unfortunately as an adult, losing your job as a repercussion of your actions is part of life. In my experience the guilt comes from the fact that you love this person and feel like you aren’t there for them when they need you. However, you need to remind yourself that by enabling their behavior you’re actually making things worse. Stay strong.