Yes you can file a grievance, but the State Bar is probably not going to be able to do much.  The State Bar focuses more on his professional representation of clients and has he committed malpractice.  Unfortunately, many attorneys are less than nice people and they still carry a bar card.  However, you can file a complaint with the EEOC or the Texas Human Rights Commission.  Either agency can receive and address the issues that you have outlined.  Your complaint would be sexual harrassment and hostile work environment.  Both have websites which can provide you guidance and instructions on how to proceed with your complaint.