felt alone w my boyfriend

i had my work holiday party last night, me and my boyfriend work tg. so first i was waiting around for about a half hour for him to pick me up but then he said another coworker was getting us so they finally got my house and they ended up smoking in the car not my boyfriend but coworker and his friend. i’m not a fan of smoking before work or around work people so whatever and they parked right outside my house to smoke which i found disrespectful. we get to the party and everything was fine but then a bit into it my bf keeps leaving me going around talking to whoever i felt awkward and j comfortable bc i would constantly have to find someone or a group to talk to. then as the night went on he would keep just leaving me to go talk to these two other girl coworkers like constantly. with them more than every time i looked he was handing out one of them. i jusy felt alone like he did not pay attention to me or hang out w me. like i have no problem of both of us going socializing w our orher coworkers but like every now and then include each other or atleast hang out w each other but i truly just felt alone. then at the end of the night i was looking for him and i go outside and he laughing w some other girl and she was like laughing touchy w him and i asked what was that about she asked him to “walk her to her car” meanwhile it was parked right in front of the bar and she walked to her car and came right back in? like what’s the point of that.