Rebshidduch, you did not stop regretting it based on your posts.
Try to listen to your head (Yetzer Tov) and not your heart (Yetzer hara)
No one said you can’t have a boyfriend – the issue was that you did not think that he would be a good boyfriend for you.
If you do think he would be a good boyfriend (aka potential husband), why are you reluctant to tell your mother about him?