Hello Mr. Good morning. I really appreciate ur effort to share ur feelings with us . You must understand Google is not a right ,appreciate and reliable source for all medical or Psychiatric illness or disorder. Phobia is just a disorder but what really caused this disorder depends solely over ur Thought, mood , emotions & behavioural process. What things bother you to marry or after marriage that is most important to be talked about or discussed. You must have some fear, worry or apphrension associated to marriage , these issues has to addressed ,rather jumping into PHOBIA directly. Assessment of ur Personality , psychosocial stressors , Personal & Sexual life is must in such cases.