Foggy was fine, worried, but understanding. After their fight her forgives Matt, but Matt doesn't forgive himself.

Basically I want some not straightforward self harm on Matt's part.

Like maybe he makes his wounds worse by pushing on them or subconsciously hitting them against something again and again, or he purposely puts himself in extra dangerous positions, eats less, doesn't sleep, etc.

Hurt my poor dumpster baby, por favor.