Ok, I'm seeing a few red flags here that need to be addressed. First and foremost,
@KiddCo is correct, your SO needs to man up. There is nothing we can say to him here that will ever match up to the things he will hear in clinicals and residency.
1. It sounds like he doesn't have a full grasp of the basic pre-reqs to enter medical school. Bio 1&2, Chem 1&2, Ochem 1&2, Physics 1&2 +/- Biochemistry, Math, English, Psych/Soc. Those are all needed before the MCAT as well. Things that would be helpful are genetics, cell bio, etc. You can take most of those pre-reqs at CC and upper level courses can be taken at a local 4 year school.
2. The MCAT is almost never optional. There are only a handful of schools that do not absolutely require the MCAT and most of them are in the Caribbean (you don't want to go there). If he hasn't finished OChem 1 and 2, he's not ready to take the MCAT.
3. Although there are formal post-bacc programs that limit you if you've already taken course work, there are plenty of others that do not. Additionally, he can also look into SMPs which generally use a combination of graduate and medical school courses to prepare you for medical school and prove that you can handle it. Generally you need a cGPA > 3.0 to apply, although GPA waivers can be obtained (this is what I did).
4. If he doesn't do a formal post-bacc or SMP, CC courses alone won't shut the door, but he'll need some upper level course work with a strong performance to prove that he can handle the academic rigor.
I'd advise him to do a lot of research about the medical school application process as well as do a lot of reading on this board about how non-trads reinvent themselves to overcome low GPAs.