People need to stop ripping TC, I completely understand where he's coming from. Being a healthy couple does not mean spending 100% of your time together. It is completely valid to want some degree of space and separation.
The girlfriend should understand that TC has zero interest in going to Sephora and he needs literally nothing at the grocery store.
What about marriage? When your mom or dad had to go to the store, did the other go with every single time? No, they didn't.
TC is getting bottled up and needs space. It's totally fine. In a relationship, both parties are satisfied. If TC needs space and isn't getting it, it needs to be communicated and discussed. The reverse holds true as well. If the GF wants someone who is around her 24/7, she needs to express that (which arguably she is).
Both parties need to agree that it's not a good fit and move on.
Someone that actually knows what they're talking about.