How do I respond to this message? (Pic 4)

This is my regular. Or was my regular. He did a few 30 minute dances with me when he first started coming in and seeing me. Over a few visits he did maybe 2-3 dances total. Then one day, I even gave him a bite of my taco when he came in (expecting him to take me for a dance that night) and then when I asked when he wanted to go he said “oh no not tonight”. This is when stuff started getting annoying and he never went for a dance again. Then I got this message the same night (pic 1). I barely even gave him the impression I liked him like that? I only messaged him during work hours too. Sure we got along and had great chats in dances but I am 19 years old- there is no way in hell I would’ve ever given this guy (35 year old with a beer gut and a beard) a chance and I am offended he thinks he is better than anyone else I see in the club.

Ever since, he has had me in ‘potential girlfriend’ realm and has not spent anymore money on me in the club. He has brought me food to the club (which he’s super proud of himself for🙄) and visited heaps of times but no spending.

I have given him way less attention and hardly even respond to his messages anymore. He sent me these messages the other day and I got the ick so bad. (Pics 2 & 3). I just ignored them both.

When he comes into the club now I have been ignoring him and not giving him my time. I might wave if we make eye contact but I purposely do not give him time any more. Not even for a quick chat.

Anyway, TODAY I received this message from him (pic 4) and I just feel mad and annoyed. What do I say?? I’m at the end of my tethers lol. I want to humble him but I don’t want to be too rude.