I don't think you need to "get over this fear". Rather, use this rational fear to guide you in the right direction.
Keep your eyes completely open with guys you date, and choose one who is going to be an excellent partner and lifelong dedicated companion.
The ways to judge that, are looking at his past behavior, his current behavior, his family and his friends.
Don't ignore what you see. That's the biggest mistake young women make. They look at a guy and see who he is and decide they can change them.
Pick a guy you don't have to change. ;D
Best wishes. I'm celebrating my 30th anniversary next spring with a great man.
Hello am 22yr am a single mum becouse me and my fathers baby are unmeried yet , listen i understand how you feel , first of all we fight a lot our relacship wasnt good before i got pregnent and after having the baby got worse it takes a lot of secrifice to wake at night to cope with a child puts a lot of money and other stres problems . Im not saying having a child .isnt nice becouse i love my son so much i die for him. But you should be with a guy for at least 5yrs before having children see that he is a calm guy and suportive and caring and be meried first its an ugly feeling having children before being meried becouse now i all ways wonder that if he marrys me its becouse of our son , pls dont rush things you wouldnt want ur child to leave in an unloving evoyerment belive me its hard