Went to a friend's party last night. At some point later in the evening it became apparent one of the guests was interested in me (started being very touchy-feely). He insisted on walking me home; when we got there he kissed me (until I told him to stop) and was clearly angling after coming inside, although I didn't let him. I was a bit concerned he wasn't going to be easy to get rid of, as he seemed quite determined he was going to get what he wanted. Told me I was amazing.
Received a message from him this morning basically saying, "see ya" - clearly he has no intention of contacting me again and was only after a shag.
Even though I don't have feelings for him I feel quite upset that he was clearly planning to sleep with me and then dump me in the morning - am I overreacting? For context, I have been single for a long time and had some shit experiences with men, including them not hearing "no"; this is no doubt influencing how I feel.