Smoke Screen

Happened to me again! Its been a couple of weeks since I took the Dart out for a ride, after driving 25 miles at 55mph I had a sweet smelling smoke screen behind me. Pulled over to a ballpark area and shut her down. Verified that yes its trans fluid leaking from the bellhousing area. After 10 minutes of cooling off, fired it up and no leaks. Drove the Dart back to the house with no issues. This happened to me before about 3 months ago, at about the same distance. The next day I went out for a ride over 60 miles with no issues.

Is the front seal worn out?