i need help !!

So my boyfriend and I have been together for almost 2 years now. But this past summer, another man messaged me and things got alittle heated and I ended up sending him pictures. I was not naked in any of them though. Simply like a bikini pic 😋 but, The guilt got to me, and I told my boyfriend. He was crushed, but we stayed together. But now, this guy messaged me again last night and it happened again.. I am extremely attracted to this other guy. I don't seem to be attracted to my boyfriend as much as I used to be though.. I love him so much. I just can't stop thinking about the other guy.. Any ideas???