Defeated

I’ve been with my boyfriend for almost 2 years now, I love him dearly but he has this ex who can not stay away he has told me before that they only talk as friends now. But when we breakup or have our arguments he tends to run back to her. So I would say a month ago we got into a really bad argument that caused us to breakup but in this argument he said something to me that I would never forget “IF YOU KNEW HOW TO LOVE ME THE BITCH WOULDNT EVEN BE A THOUGHT”. I felt like my world had stopped & just crumble I do everything for this boy, whatever he wants he gets. when I say I get him whatever he want I mean whatever because I don’t want him to be hard on himself because Iknow he can be but just yesterday he asks me “do you think texting is cheating” & I automatically knew what he meant he’s talking to her again so when he got in the shower lastnight I was so tempted to go through his phone but I didn’t. IDK WHAT TO DO ANYMORE 😔 I love him like beyond love him beyond inlove with him but I’m sick of crying this shit. I just want to be happy again like we was before but it’s the fact that he tells me he loves me all the time & I know he does but he will always love her more then me & I just feel defeated because I’m the only one here for him nobody else not even her not even his family.