Why did he delete my number?

blairxoxo
So there's this guy whom i’ve known for some time now. He was pursuing me and seemed to like me a lot. He has a girlfriend tho and she has a child from a previous relationship.
so this guy always texts me to go out for drinks and we end up booking a hotel room and yeah.. (happened 3-4 times now) and yesterday was one of those times. I told him that i am on my period (day4) but he didn't care because its not the first days he said and then we went and got a hotel. He paid for everything, drinks as well as hotel around 500 in total and then we did it and the sex was shit he couldnt even get it up and told me that i gained weight so around 3am we decided to stop trying and leave because his girlfriend would get pissed if he didn't come home the night and my mom was calling me like crazy.
Then today i woke up around 12am and he had deleted me as a contact on whatsapp.
why WTF would he do that?
He is 38 by the way i am 22.
Why did he delete my number?
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