Do i have to give my boyfriend a ******** to help our relationship?

well i love my boyfriend and we've been going out for 5 monthz and i really dont want to give blow jobz and ive never given one so i dont kno wat to do.. he doest bug me about it but i kno he might be thinking of asking me or pushing me down thre but i think itz nasty.. but i want a guyz point of veiw, do all guyz need blow jobz?? becuz im scared that he might leave me for a ******** freak..