Why am I still waiting? ?

I have been with my boyfriend a little under three years, I had been in a few serious relationships before but I was his first, our relationship went from strength to strength, he was very shy when I met him and I have always tried to motivate him and give him the confidence to do things, until about a year ago, things have begun to slowly change, he is over confidant now, has lots of friends and although I know he loves me, he screws up all the time. from past relationships I had developed a few trust issues, and all I ever asked from him was honesty, he is not dishonest but tends to avoid telling me things which he knows upset me, we are trying to save up to move out together and he goes on shopping sprees and then hides the purchases bringing them out slowly one by one and saying he's had them for ages, he also has got 6 tattoos and each time he got one I asked him to tell me before he gets a new one, then he just shows up with one more (I don't have a problem with tattoos I just like to know what he's getting before he gets it) he also gets really drunk and spends loads of money buying everyone drinks, and is sometimes rude to me when he's drunk, I just want him to either grow up or to stop promising me things he doesn't really want (moving out, marriage, children) if he doesn't really want that why doesn't he just say? Instead of proposing those things to a very hopeful me and then not making any moves towards it, I don't know what to do anymore, I do love him very much and I know he loves me, I just don't want to waste any more of my time. Sorry for the incredibly long post I just really do need some advice... X x