Have you ever wondered why twin-flames experience so much separation from each other? The connection you have with your twin-flame is meant to help each of you ascend. You will experience periods of merging followed by periods of separation until each of you has managed to ascend to a level that will allow you to remain in a stable union.

When you and your twin-flame come together, it is like two flint rocks being struck together, creating a spark that will propel you further into your spiritual and/or healing path. Twin-flames are often triggering to each other, and this triggering simply serves to urge each of you to become your most healed, most happy, and most joyful self. It certainly may not always seem like a joyful journey, as the twin-flame experience is often wrought with pain. However, this pain is like the pain of a surgery. Ultimately, it is a healing pain that will help remove any lower-vibrational patterns and release you more and more into the buoyant energy of unconditional love.
Likewise, periods of separation also propel a new phase of growth that can only be experienced by each of you apart from each other. If you look at the double-helix image I've provided, you can see how you and your twin-flame are spiraling upward like the two sides of the double-helix. But what allows you to move upward are the alternating periods of togetherness and separation, which become like rungs of a ladder. Get stuck on a rung of the ladder for too long, and you will remain unable to move forward.
This does not mean it is impossible for you and your twin-flame to have a stable union, but we are currently living in a time of massive ascension, and all of our souls desire as much upward mobility upon the ascension path as we can acquire. You can certainly evolve to a point of unconditional love that will allow you and your twin-fame to rest in a period of ascended togetherness in this lifetime. You and your twin-flame, and all of us together, are helping each other to move into a period of Heaven on Earth. This is a blissful goal!
Continue to heal yourself. Work on self-love and self-forgiveness. Be in service to love and the highest good. Seek spiritual growth. Seek to fulfill your greatest potential. Enjoy life, whether with or without your twin-flame. Life is meant to be enjoyed, it is not meant to be an experience of suffering, but it is not meant to be an experience of stagnancy either.