TMZ has learned ... after Tiny filed for divorce Dec. 7, the two have gotten together in person at least twice and sources very close to the couple tell us "things got romantic."
We're told there are still major issues with the relationship -- the word that keeps being thrown around on both sides is "trust."
At the core ... T.I. and Tiny have been together for nearly 20 years and really do seem to love each other.
By the way, T.I. was at Tiny's home around Christmastime and they got along great.
Bottom line ... if Vegas took action on these two, we'd bet on a reconciliation.