Mystery: For principle, when you have a partner, do not give him everything you can give him, not so quickly and easily. A woman who gives easily all she has and what she can give is very little valued by a man.
Seduction: Being affectionate and attentive constantly, makes men lose interest because it costs them nothing to obtain it. It does not mean that you should not be but that you dose your affection and convert it into seduction.
Become a prize: When they struggle and invest effort and patience to obtain the desired good, they feel the pleasure of victory. For this reason, they love more what has cost them so much; do your best so that being with you is a prize, his glory, not a daily routine that he can get tired of.
Be Interesting: Become an interesting person and make him feel that he can lose you if he does not have you, in this way, he will seek to secure you with the commitment and later with a wedding. For your part, look carefully at his actions when you talk about the subject, watch him carefully and you will understand why he does not want to commit, in this way you can do what is necessary for him to accede to the commitment. Do not try to force him or make him flee; finally, one option of how to get a man to commit is to find the reason why he does not want to do it and to take action on it.