AITA for having conditions for giving my daughter money?

I (52M) have a daughter (20 going on 21) who has been attending law school in a different city since last autumn. We have had an agreement where I send her some money each month and pay some of her bills to make sure she doesn’t have to worry too much about finances while studying.

We had, however, agreed for some conditions she needs to fill in order to receive money from me, and I don’t think these rules have been unreasonable at all. For example, I have said nothing about partying and drinking, I know how studying is at that age, I’ve done it myself too back in the iron age, and it would be pointless to even try. The only rules we have had have been a.) no drugs b.) she has to pass her courses c.) no intimacy or going out with guys in general. She had agreed to these rules in order to receive money for me.

Recently I learned from a friend, whose daughter is attending medical school in my city and is good friends with my daughter, that my daughter had installed Tinder and gone on a couple dates with someone from that app. Having learned this, I asked her if it was true, and she admitted it was, and so I told her simply that I won’t be helping her financially for the time being anymore. I didn’t get mad or disown her, limit contact or ruin our relationship in any way, I simply told her that she lied to me and she no longer filled the requirements I had for her to receive that money. She got angry at me and told me the rule was controlling and overbearing. I disagreed. It is my money and I have total freedom to choose who receives it, how much, and why, and no one else (apart from the taxman) is entitled to it. We haven’t spoken much since.

What do you think? AITAH for having conditions for my financial support?