You sound understandably confused and upset. He wanted sex and got it. You haven’t ‘lost’ your virginity- you had sex for the first time with someone who didn’t want a long term relationship with you.  If someone enjoys spending time with you then they will want to spend time with the genuine you. Don’t change yourself to suit another AND we can all work on making ourselves better versions (it will depend on your values – I’m not talking appearance). Always work on developing yourself into the sort of person you’d like to be and that will attract the sort of other people that you want to be with.
The hurt will heal and you will have learnt some valuable lessons about your self worth from this interaction.