You have to understand. We had a gp before. He was amazing, without a partner, from a baby age. I thought maybe most adjust. I am seeing now, that it is not true. We can not get another pet at this time, or I shoudl say, that is not the right decision for us. So is it better to jsut let it live life alone, of course not!! She is only liek 8 months old. She has a long life to live, and nothing would make me happier then to see her running with other pigs.
Not to be harsh, but if your previous pig lived its entire life alone it was not happy, or at least not as happy as it could and should have been. It probably acted very happy around humans because it was the only interaction it got, but when you were out at work or sleeping it was likely miserable being alone. You were happy, it was not. It was likely too depressed to vocalize its desire for attention, whereas your current pig is more persistent.
You have a large enough cage to add another guinea pig, and the financial difference this makes is negligible. The pig you have now would be happier and likely quieter as a result, which eliminates the issue it's causing with your husband's work (which by the way, as someone who mostly works from home, I completely understand). If you are unwilling to do this, please ask a rehoming fee as bpatters said so your guinea pig isn't used as a feeder for some idiot with a snake.
You knowingly adopted a herd animal and are now dissatisfied with it for showing it's nature. Rather than give the animal what it needs to thrive, you are instead discarding it.