The exact same thing happened to me in a club, he was keen, attractive and great in bed. I was smart at first, just treating it like a one night stand and keeping my guard up.
We exchanged numbers and he broke the silence after a day, we ended up sleeping together frequently over the subsequent few weeks. The compliments from him rolled off his tongue like a well rehearsed play. There were promises of dates and romantic getaways and I thought to myself after a few weeks, maybe this guy actually likes me. WRONG
He leaves back to university and I miss him, the texts stopped coming and I was upset and confused having never been in this situation before. I eventually got over him and I am now fine
The chances of you finding a boyfriend in a club long term whilst not impossible, is very slim. I'll never say never, but men are cunts. Plain and simple, this is one of the things you have to go through life and endure and suffer through because that's just how it is. I hope you have the strength to power through and if you need to chat or anything don't hesitate to pm me