My question is why do I face promise and fail

There are signs that indicate the sincerity of the other party or not. If you find some of these signs in him, it is better to withdraw from the relationship and pay attention to promises and continue. One of these signs that indicate his sincerity is an attempt to officially advance your engagement He does not hesitate to introduce you to his family and his surroundings, and someone who is ashamed of you in front of them He avoids meeting you in places far from people's eyes. If you find that he is acting the opposite of that to you, know that he is not honest with you and only wants to spend some time and is not honest about your relationship.