Reason I'm not invited anymore?...?

So at the beginning of the semester me and my friends would party a lot but overtime we've disbanded as a group with people getting different friends, etc. Sometimes we would still go out to parties but rarely. The last party we threw was a big house party and someone else's residence (we got permission, no worries) and I got like black out drunk ****** up puking everywhere blacking out etc. and my friends had to take care of me. Lately my roommate I noticed doesn't invite me to parties and its usually her other friends that we all rely on for parties. I mean were still cool for the most part and for a while I've been wondering why I haven't been invited to any social outings like that. Do you think the reason is because of that? Plus it was a frat kind of party and my other roomie is a new pledge and her sorority made an entrance, etc. so I probably embared their sorority....do you think that one night of effedupness caused me not being invited anywhere like that?