Im in a relationship with my partner for 18 months. 9 months ago we moved in together.. 

On Saturday last i received a call from an unknown person who informed me that every sat where my partner works his exwife is there. An the sit in her car kissing an hugging. Im devastated... They have been married 30 yrs so its not as if they are young we are all in our 50s.   We worked together an thats how i met him. He told me his marriage was well over.. He had affair 20yrs ago an a sin was the result of that affair whom he has never seen.. Then about a yr ago a woman approached me an said in conversation that she an he are together 10 yrs an that he had been promising her he was leavin wife an never did so she arranged to meet him 1 day but also arranged for his wife to show up.. Mental.... He has told me all this an even though this woman told me they were finished i have found text an her number in his phone.. 

An now hes suppose to b carryin on with his exwife... I treat him like a king... He told me he was never happy at home an that he never knew love till he met me.... I love him an he knows it ive taken him back twice after i found the text an calls on his phone an he always went back to exwife.. An then would be on phone to me cryin that he wants to come home that im the only woman for him.. An now this... I feel so empty so sick an my heart is breakin... I haven't confronted him yet over this new information i have... Dont know what to do... People have tried to tell me what hes like an i know he has a history.... Please help me