timid

calling all boys!!!

i need your help......
me and my ex have been off and on for a few months now.... he didn't talk to me for a whole week and i was starting to be ok with the single life.... then last wednesday he called me. And we have hung out every night since.... had an amazing christmas with his family. he told me he loved me a million times and said i was his girl friend again....
but he wont talk to me about what we are doing...
if he is living at our house? or where he is going to live (he lived here but has been couch hopping). We also ran into his exgirlfriend the other night at the bar and i walked into the bathroom with him hanging over the door while she was peeing. Then last night he introduced me to some people " hi this is my girlfreind Jessalyn" I AM NOT JESSALYN the ex is..... (they have been broken up for two years)
tonight he is on some bullshit hasn't called or came home and he knows i am not ok with that.....
so,
what should i do?
How can i make him regret being a huge dick, without being a whore and sleeping with one of his friends?
Do i lock my door incase he tries coming home at 2 am?
WHAT WHAT WHAT DO I DO> please help.......




Timid