I am sorrier for your pain than I can express.
Your subject line says, "Don't know if I should stay." The good news is that you don't have to decide today, or tomorrow, or next month. You don't have to decide next year, even.
What you DO have to understand, however, is that recovery from infidelity is a very long-term proposition. No one is exaggerating when they say it takes years. YEARS. It's not unusual for one or the other partner to decide, somewhere along that years'-long path, to end the relationship. It's is not just the BS who has this choice, either--I think that is something important for you to keep in mind. You're only half the equation here, and she's not all in.
You say she is remorseful. At this point, I think she is not. I know this sounds like hair-splitting, but there is a real difference between regret and remorse. She is regretful.
That may well change. It's not at all unusual for a WS to take a while to reach real remorse.
You can take time, if you'd like, to evaluate the situation and observe how it unfolds. What actions does your WGF take to become a safe partner? What things does she do, without prompting, to learn more about her poor boundaries and how to shore them up? What is she doing to educate herself about the process of rebuilding?
I'd ditch the couples counselor you've been seeing. First, s/he sounds terrible. Like, TERRIBLE. But more importantly, this is an IC issue; your WGF needs to explore, in independent counseling, her issues. She needs to gather coping tools, because the ones she has are poor. She needs to learn about herself and what she wants---and how to express that in ways that do not destroy other people and relationships.
You need IC, too. I don't like the term codependent because it seems blame shifty to me, but you seem to be bending over backwards to make things easier for someone who needs to be doing some very hard work. And YOU have hard work, too. As much as every BS would love it to be different, the fact of the matter is that our healing is 100% our own. We have to do it whether the relationship continues or ends---and no one can do it for us.
That's what IC for you is about.
Couples counseling is something you can explore down the road, if you remain a couple. I have to join the others in expressing concern that you were already in counseling. While I think it is, on one hand, often a sign of maturity to work to identify issues rather than treat relationships as disposable, this is what is supposed to be your honeymoon period---and difficulties this early on requiring professional intervention seem to be a pretty strong indicator that you just aren't with the right person.
Have you considered that? That you're trying to fit a square peg into a round hole when, in fact, there is a nice round peg for you?
It just concerns me that you seem to be working hard at making THIS relationship work when it is so fundamentally flawed.
Add in the STD-complicated infidelity (which was NOT because she was "far away" and "doing things out of character," but rather a clear indicator of who she is, and the state of her character), and it's very, very worrisome.
Hold off on proposing. Return the ring. Don't hang on to it in case you decide to propose----that will make it too easy to impulsively do so. Besides, this ring is, well…tainted.
If you truly believe this is the woman for you--that you are meant to have a lifetime together, then you can start that lifetime together unmarried and doing the VERY hard work to reconcile. You will see whether she has it in her. It will become apparent whether YOU do, too.
There is no shame in either decision. But make it for the RIGHT reasons. What is it that convinces you that THIS woman is the one with whom you are intended to spend your life? To the outsider, it's very puzzling, as your short relationship has already been so rife with discord.
I'd be curious to know your relationship history, as well as that of your parents. Because something is pushing you to salvage a relationship that most would choose to view as a sad life lesson, terminate and mourn, then use what was learned in the continued pursuit for a healthy relationship.
(I wish your therapist had been one interested in helping you make the assessment of your relationship, and whether it is meant to continue. Instead, you got an excuse-making enabler who doesn't seem to care about YOUR emotional well-being at all. If nothing else, THAT relationship must end. Neither of you should use that therapist for IC, and when it's time for MC, another should be chosen.)
Again, I'm very sorry for your pain. While you don't have to decide immediately, you DO have to take measures to prevent the decision from being made FOR you. Not only do you have to be very cautious vis-a-vis the herpes, but also as relates to pregnancy. You would not be the first man whose partner decided to cement a relationship with a baby--so it's critical YOU ensure this does not occur.
[This message edited by solus sto at 12:56 PM, April 25th (Monday)]