Hi julia, when u are telling that he has changed then why u got so much doubt about him. It is hobiously everyone will have doubts when their lover is online without texting them. It does not mean everybody is cheating but it depends on us how we take it as. Ya i can understand ur doubt on him as the things happened in past . But now he is ur fiancee , u have rights to ask him all the things u wanted to know so clearly talk with him and clarify all the things between u both because it should be done before marriage. So if u had anything in ur mind don’t keep it in ur mind clarify it as quickly as possible.