Difference in phase response between circuit simulation and MATLAB
Basically two things: -

-180 degrees is the same as +180 degrees and you are seeing that step change as something important but it isn't. It's just a continuation of the phase as it passes from -180 degrees to +180 degrees
Your circuit simulator uses a real simulated op-amp hence there will be things about it (such as the phase shift extending past -180 degrees) that you won't see in your Matlab simulation (because you are not modelling an imperfect op-amp in Matlab).