Paula Patton -- I'm Not Taking Robin Thicke Back ... YET

Paula Patton is NOT reconciling with Robin Thicke ... at least not yet, and she may never get back with him.

Sources close to Paula tell TMZ ... Robin has not been convincing enough for her to bring him back into her life. We're told Paula is saying the same thing she's said since she threw in the towel late last month -- that he needs to prove he can be a good husband.

Robin has begged for forgiveness in concerts, on TMZ, and privately, but we're told she's spending a lot of time thinking but she has absolutely not decided to give the marriage another try.

On the other hand ... we're told she still has not met with a divorce lawyer and has made no decision to file legal docs.

Short story ... the jury is still out, and Robin needs a real good closing argument.