I have no doubt he is feeling that. My W said some things like that too during her obstinate period. Remember he is on a roller-coaster of emotions too. So he will have legitimate feelings that he misses you and "us" as in you both as a couple. But you are right, until he is fully committed, you can't put much stock into those feelings and certainly not in his statements.
STay strong! You are doing great.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018