Millions of people in the United States alone have HSV2 and don't know it because they have no symptoms or incredibly mild symptoms.
Most people don't have noticeable symptoms. A few people do experience uncomfortable or painful symptoms, and those people usually find that the symptoms subside after 12-24 months. And fewer still have uncomfortable symptoms for longer than that--and it's these people who we usually associate with the word "herpes" because it can be unpleasant for them. AS I said, they are the minority and most people with HSV2 don't know it.
Your room-mate could easily be one of the millions who don't know it. While you happen to be one of the people who experiences more uncomfortable primary symptoms
There are so many people with HSV that it may never be an issue as far as your love life. Movie stars, doctors, lawyers, airline pilots--they can have HSV2 just as easily. Unfortunately, the common virus has been stigmatized to an incredible degree of hysteria in our society. Most of it it completely unfounded.
In an ideal world, none of would ever get a virus of any kind. We don't live in that world. and we are exposed to viruses all the time. Those viruses don't make us cry ourselves to sleep at night. But for myriad reasons, HSV2 makes us feel emotionally horrible.
Some time and talking to other people who understand the situation will make you feel immensely better. Sooner than later, you'll meet someone else who is in the same position or doesn't care or worry about it. Most couples where one person carries HSV2 conclude it's not worth worrying about condoms. That's just a fact too. It's a personal decision for everyone, and many people, upon learning what it really means, decide it's not something to be deathly afraid of.
Take the time to breathe and relax. Go easy on yourself. You're not ruined. You're not a bad person.
The sexiest person in the world might have HSV2 too, whether they know it or not, and that person might be very thrilled to meet you.
The combination of the symptoms and positive swab leave little doubt as to a genital HSV infection.
There is also little doubt that your current roommate partner is the source of the HSV.
There may still be an open question as to whether this is HSV2 or HSV1. There does seem to be enough time passed for the swab to be correctly typed by culture, but it is worth checking whether it was typed explicitly for HSV1 and HSV2. If it was PCR test applied to the swab then the type is confirmed.
A genital HSV1 infection can occur if the partner has an oral cold sore infection and gives oral sex.
It is possible that your partner did not know of a genital HSV2 infection (if they have one), especially if they have an oral HSV1 infection. It is also possible that he does know, or perhaps should know but ignores symptoms. The virus is infectious at rare times even when no symptoms are present.
However there is no reason to believe that your sex life is over. Many people are not rejected in disclosing a genital HSV status, particularly if precautions are taken such as condoms and antivirals.