1. The ai animations are an excellent improvement compared to this developer's normal work, in which he does very little animations at all. In other words, this is what modern ai is actually supposed to do - improve work flow so a person can get more done in a small amount of time.
2. As for the cheating/not cheating of the FMC, that is all dependent on your choices. Misfits had the same dynamic of cheat/not cheat with Clara. If you went full NTR, she cheated, and if you avoided NTR, she did not. Do not expect anything different here. The scenes played the same, but afterwards you found out who was lying about it.