The English dictionary defines phobia as an extreme or irrational fear of or aversion to something. Which means you have a high chance of having a panic attack when you come in contact with these things you have phobia for.
Some people have some weird phobias which could turn out to be serious and affect how they relate with others, their love lives in particular.
Amanda Chatel of YourTango lists a few of other fears could be preventing you from finding real love: