Break up over porn

So yes. For a while now I’ve been letting my boyfriend know that I feel like we don’t really get intimate as much as we used to. Like it’ll be weeks and we might have sex once or twice. I asked him why? If he was watching porn or cheating. Because how can a man go from constantly wanting sex to barely wanting it at all. He said no to those questions and stated it was because we have a toddler and I’ve been spotting a lot because Of depo. To me these were reasonable reasons. So he initiated sex once after that and that was it. I ended up bringing it up again a while after because it was the same thing plus I discussed this with him before, so I’m frustrated and overthinking now. He again initiated and I did as well. But that’s still a big lack of intimacy. So I ended up asked him again if he was getting pleased some other way with porn cause really doesn’t seemed bothered by it at all, again he said no to watching porn but I saw his phone search where just like a week and half ago he was watching porn. So I’m on edge and pissed off because not only did he lie unnecessarily, he literally has me feeling like I’m begging for sex. I don’t masterbate, I’m not a cheater. I don’t have any release any other way. I’m like all this time I’ve let you know how I felt and you still been here choosing porn over me. I’m ready to leave.