First, Do whats best for your children. Do your children love there Father? Is he a good dad to them?
Will it hurt them deeply if Mom chooses a 14 year old infatuation over there happiness? Trust me they WILL NOT understand!
If this man is eating breakfast with you, someone elses wife, then he is already a Spiritually weak JEhovahs Witness. If your children love there father then I suggest you Stay away from this long time crush. Dont talk to him and dont look his direction. Are you really unhappily married or are you convincing yourself that you are to follow a crush? ONly you know the answers to these questions. Dont let this man cloud your better judgement. If somehow you guys ended up together he would have NO PROBLEM letting YOUR kids die of refusing a blood transfusion! Being a JEhovahs Witness is a way of life and its the only life he knows. Even if you seduce him and you guys have sex, as soon as your finished he will be overwhelmed with guilt and probably run to his dad or the Elders of his congregation and repent. They will tell him to STAY AWAY FROM YOU! Please, I know your hurting but there is so much more to this guy than you could ever imagine.