Sexting my ex while with my current

I have a confession to make

Recently it’s been eating me up inside and i can’t stop thinking about this i cheated? Is it cheating when your sexting...anyway i started talking to my ex like a week and half ago about an incident that happen i wanted to apologize, i could see our friendship getting stronger and that’s what i wanted but he would be more open about his gf not giving him the pleasure he needed i barely talk about my well ex bf because the sexual stuff i thought was funny but i could see him getting serious.

I liked it though but it was getting serious he one day kept asking could we sext and i told him no like 5 freaking times until i gave in stupid i know well we exchange on when our partners would be around his gf on the weekends and Monday around Tuesday’s idk, and i would just let him know when I’m being around my bf, i honestly was seeping back into my old self but i was enjoying it because my relationship was becoming so shitty. I just didn’t have the guts to say anything to him (i was a little scared of him)

So the first night was fun we talked around 7 or 8 and i swear my ex was so stern and sure on his words but he was also sexual and punctual like he wanted me in the worst and best way. He would say how his gf never wanted to explore I’m sure they had plan vanilla sex and with me well i love exploring and i loved kinky things! 😌 so he would say send me a video of you playing with yourself i was like nah but idk i just like that stern talk sometimes so i sent him a video of me dancing it was sexy of course, the next day was pictures we did a dare of where we would take pics naked and he sent me a video of him jerking off by his mother room and him pleasing and finishing outside he showed me of course!. I was intrigued of course....

The third day was me sending him videos of me pleasuring myself and saying his name..it was embarrassing because i was in a relationship and moaning another mans name was just worst you can do! Of course i finished and i told him something i said i missed you...he ignored it, that’s when i knew he was only in it for the nuts and pleasure...i was about to literally have sex with this man give him my mind body and soul..all for a dumb fuck....now I’m stuck

I’m still with my boyfriend, but idk if i should tell him this....and my ex current gf knows about us talking but not about the sexual things we did but i would like for her to know but then i don’t...i don’t know what to do