Am I in the wrong ?

So helped a person out last week - they had nowhere to sleep so I asked a friend if they could stay for the night - he said yes but 6 nights later he was still there with no intention to leave so this morning I had to tell him it was time to go , that he had outstayed his welcome and he needed to leave . It went down so badly - got called all the names under the sun ! Imagine a 16stone man having a go at a girl! So I got upset , then I heard a female cough - who's that I asked and I found out he had a woman in the room - how disrespectful can you actually be , that literally was the last straw - I opened the bedroom door - told her to get up and get out! then I looked at him and said you too - get out and leave the key !

Last time I will do anyone a favour - not worth all that hassle !
Felt bad that he had nowhere to go but lets face it he is 38- he should of made more of an effort to find somewhere to go and it would not of come to this !
Was I too harsh?