Affection

Okay so I’m the type of person who craves affection and my boyfriend is the least affectionate person I’ve ever met, last night really just drove me crazy we were at a friends and my friend and her boyfriend sat next to each other and cuddled on the couch and I sat next to my friend and my boyfriend sat on a totally separate section of the couch away from me while watching a movie... should I be concerned I have no idea if something is going on or something wrong with me no idea we’ve been dating for 2 years now and have an 8 month old son so i just don’t know what to do anymore I need him to be proud to give me affection and be with me like is it that hard?