@grtalgon,
If you don't want to date your boyfriend any more, then stop dating him. Don't get involved with his friend (who is also your friend, from what I can gather here) unless you are free to do so. To do so beforehand is unfair to everyone.
Oh, and it's spelled 'all', 'and', and 'with', among others. I realize you may be used to texting and you may even be typing on your phone, but those misspellings, plus the use of the ellipsis instead of periods, makes it exceptionally hard to read your post. I gave up and read about 1/5 or so of it. Thanks - it really does help you to get your questions answered if they are clearer.