What the scariest point of your current relationship?

I've been in a relationship for a very long time already. We are blessed with two beautiful kids. I can't say that my relationship with my partner is really perfect. There are a lot of times that we fight and have some misunderstandings. During the first few years of our relationship, I can say that its alsmost perfect. But as years passed by, a lot of trials and tests came along the way, that often times it chanllenges our faith,commitment and love for each other. What scares me most right now is that the fear that after all the rough times we've been through and trying to hold on with the relationship, I am so afraid that one day, either one of us will tell each other that I had enough already and that I can no longer hold on to the relationship. Also, telling to the person whom you envision to live with for the rest of your life, that you're no longer happy and that I failed as a partner. This I think would be the most scariest moment in my life if ever...

For me the scariest point will be when me and my gf had a quarrel, and we didn't meet for a few days. I felt totally lonely at the point and I really in no mood to do other stuff. It felt like she was going to leave me. But eventually we talked things out and get together after that. Thanks God for that.