Going into a new relationship with trust issues!

According to Every Day Life:

Infidelity in a previous relationship can affect future relationships, causing various problems such distrust, miplaced anger and emotional distancing. 

It is difficult to trust others when you don't trust your ability to make good choices.  After your previous partner cheated, you may not feel that you are a good judge of character or able to see warnings signs.  Lack of trust in yourself and your partner can create distance, insecurity, negative communication and rejection of genuine love, warns clincial psychologist Melanie Greenberg.