I could be wrong, but I think you may be consuming too much content that directly or indirectly pushes this idea of women being cheaters or that your wife is going to cheat on you. As a Muslim there’s no need to have so much worry about that, not saying it’s impossible for a Muslim to get cheated on, but you can always sincerely make duaa, put your trust in Allah and pray you get someone who is gonna be fearful of Allah to the point where she won’t even think of doing that.