Comfusedddd

So Im in a relationship of 11 months today. Everything was going great untill he randomly said he wanted to go on a break. Things haven’t been the same since he’s been having a go at me everyday for really small things but then says it’s down to my poor mental health and my period. He makes me feel bad for being outside with my neighbors every day & night and only taking a few hours out to go on call with him, I’m always textin him mind. He made me so happy when we first got together

So there’s this guy I’ll call him x, x is caring he’s a few years older than me, he’s handsome and just genuinely happy go lucky guy. He’s been hanging around with me a lot recently and been helping through my problems with my current boyfriend. But because I’m not happy with my boyfriend I have started to develop feelings for x. We text every night/ day (he’s my next door neighbors to) I dream about him, he flirts with me and just makes me happy

Do I tell him? Do I stay with my boyfriend and see if things change. I dunno if x likes me back

Someone help me?