Those comments are designed to make you feel ashamed. They are meant to induce feelings of guilt, based on the fact that your "friend" is still plodding along, going to Meetings™, going Door-to-Door™, and believing every bit of nonsense published by the Watchtower Society.
You have done nothing to feel guilty or ashamed. You are exercising your bible-based right to "make sure of all things, hold fast to what is fine" (1 Thess 5:21), and following the example of the Be·roe'ans in 'examining the scriptures as to whether these things are so' (Acts 17:11). You have determined that the organization is "loveless", and thus does not meet the standard at John 13:34, 35 for identifying Jesus' true disciples, and also is "based on lies" which therefore makes the organization satanic (John 8:44). The only option you have is to "get out of her ... if you do not want to share in her sins, and if you do not want to receive part of her plagues" (Rev 18:4).
Bear in mind that this advice is being dispensed by Scully, your friendly neighbourhood atheist.