Please helpp heart broken and don't know how to get my mind off of this guy?

I made the mistake to go to a weekend trip to a cabin with a boy I liked . He begged and begged and so I went. There were other of his friends too which I only met there . I thought I just wanted to hook up with him but I don't think that's it . This weekend probed it . We only made out in bed. The reason y I feel so drenched is because he plays around way too much. Everything that comes out of his mouth is him talking **** of some sort. I know it's supposed to be a joke but there is a line . He never says anything nice to me . He cuddled me every night and he would be very currasing . But last night I noticed he was texting all night. And in the middle of the night he got up and went upstairs to sleep. I got angry and texted him dude thx for leaving me down here in the basement . And I realized his phone was right next to me . So I looked at it and it said he had messAges from another girl ( no I did not read them) cuz there was a pword . Well the girl he was texting is someone he was seeing a while back . My point is that I know nothing good can come out of this . I'm so exhausted from this weekend . He never shows any sort of affection during the day . He even left for two hours and went to the basement without telling anyone during the day on one of the days. And I was sitting there with all of his friend which I just met. Idk how to feel I know I feel sad because I know I think he uses me to get over other girls . He s never been in a relationship an he s 24 I'm 23 . I don't ever want to confront him bc he s so weird and so hard to read and predict . I'm way pretty but this weekend has taken and lowered all of my self esteem , I know he might try and hang out again but i know I shouldn't the more I hang out with him the more hurt and lost I feel!!