Happy to hear you are doing well, man.
I actually want to apologize to you. To be honest, I saw your previous posts and shared them as a joke because I did suspect it was purely coincidence. After some time went by without hearing from you and a few others reached out in a more earnest fashion (kudos to those guys), I began to regret not doing the same. We are a bunch of assholes around here but it's really not something that's acceptable to joke about or take lightly. So for that- I truly am sorry. To you, but also to anybody else whose life has been impacted by suicide to any degree.
As for your story above- I'm glad you could share with us here. Everybody processes these things differently, but I encourage you (and your fiancé) to continue to reach out here or elsewhere if you need to. That is a traumatic thing to experience and there's no shame in seeking help and taking care of yourself.