I can provide some general insights that might help you think about the situation.
Having a TikTok account with followers who are women, some of whom may have 18+ content on their accounts, does not necessarily indicate any inappropriate behavior on your husband's part. Social media platforms are public spaces where people can follow others for various reasons, such as common interests, entertainment, or networking.
It's important not to jump to conclusions without proper evidence or communication. If you have concerns or feel uncomfortable about the situation, the best approach is to have an open and honest conversation with your husband. Share your feelings and ask him about his TikTok activity and the people he follows. Communication is key in any relationship to address doubts, misunderstandings, or concerns.
Remember that social media interactions don't always signify personal relationships or conversations. People may follow others for entertainment purposes or to stay updated on particular interests.
If you find anything genuinely troubling or suspicious, calmly discuss it with your partner and try to reach a mutual understanding. Trust and communication are crucial for a healthy relationship.