<human>: Last night I went to the bar with my boyfriend of 4 months. Another guy, Mark (31M) is an acquaintance/bar friend of my boyfriend's since they are both regulars. Mark was already pretty drunk when we got there. My boyfriend spent most of the night at a table with other bar friends, and when I got up to buy a drink, I got wrapped up in a conversation with Mark. He bought me a drink and after talking for a while started complimenting me (you're very pretty etc.) and at one point said he wanted to make out with me. I turned him down, saying I was loyal to my relationship, but at the end of the night he gave me his card, told me repeatedly to text him, then left. My boyfriend and I went home a little while later, and I thought about telling him but didn't bring it up. I have no desire to be unfaithful and already threw Mark's card away. Should I tell my boyfriend about this? Would it be a breach of trust if I don't? We will definitely be back at this bar and will probably see Mark again fairly soon.

Summarize the given text in a few sentences.
<bot>: Went to the bar with my boyfriend and a bar friend of his hit on me all night. Boyfriend didn't notice, I turned the guy down but want to know whether or not to tell my boyfriend about it.