My Bf its cheating me?

[Lizzie8]

I had 2 years with my Bf and live together since 1 year ago, he was divorced 2.5 years ago and was married for 26 years, he had a daughter of 25 and 3 grandkids, i dont meet daughetr, family or his old friends yet , he say that its not the momment that we need to wait more and find the right moment and his ex had emotional troubles to move on and doesnt want to be rude, 6 months ago his exwife start to talk to him more that usual on past for problems of his daughter normally he talked with me, last 3 months his ex star to talked all days for any issue and he end conversation like ok baby or love you he say that is not same love you that i am in love with you, i want to go to a cowboys game and he lie and say that had a comitment with his daughter, i found later that he bought tickets and pay flight for his ex i confront him and say that was not something romantic that they do that for 20 years with all his old friends and they are traveling just like friends, that never though that could be wrong apologize and something convince to me so we go on together he dont travel to that game with her, later i see text between them where she pick up on airport and say love u and love u too i lose my mind and sent a pic of us together to her a happy one, he travel to spent christmas with his daughter and his ex and daughter claim for that pic, he sent a text to me that was so angry and dont know what to do and dont want to speak with me, until be face to face, he doesnt answer phone or texts to me even on christmas he had to arrive yestarday and didnt not advice on anything, i really dont know what to think i am so confused anger, i dont know what is happening i know that was wrong send text to her but that reaction?? i really need an advice