Is there anything that I can have done to fix the line in my nose? (photo)

The best long-term solution for fixing the line in between your tips are to realign the cartilages so that there is no space between them.   This would entail a rhinoplasty.Your alternative is to use a dermal filler such as Restalyn or Juvederm. This will provide a transient correction of the deformity that you're interested in. This can be done in very small increments and it can be done while you're watching. The other advantage of this approach is that if you do not like what you see, then you can also inject a little enzyme to reverse the dermal filler product. I would definitely go to someone who is experienced in the nonsurgical rhinoplasty.  

  A tip rhinoplasty would have a far more predictable and long lasting result than would a filler.Find a board certified plastic surgeon who performs hundreds
of rhinoplasties and rhinoplasty revisions each year. Then look at the
plastic surgeon's website before and after photo galleries to get a
sense of who can deliver the results. Kenneth Hughes, MD Los Angeles, CA