12months ago I found out my partner of 1.5 years had been texting and ringing his ex for 12months behind my back. At the time I was 7months pregnant and forgave him.. but 12 months on and I can’t stop bringing it all up everytime we argue. I lt gets me so angry when I think about it. Would you class this as cheating? Or am I being unreasonable and just need to get over it like he says