when you have impulses you need to just focus on breathing. then read, talk to a friend, write everything you feel or think out, write a poem, go on youtube and search dane cook things, watch a funny movie or show, or even just simply write out 50 things good about you. yes i know its hard, please, just try it.

i agree with everything that l0ve911 said. focus on the breathing and always keep your friend in mind. you obviously care about this person because otherwise you probably would have already given in. that friend deserves to hear that you are feeling this way, because the idea of keeping each other in check is to hold each other up in moments of weakness. don't be afraid to use that resource because that's what friends are for.
here at DS we are also all great resources so feel free to message me if/when you ever need a little encouragement.