<human>: Can you provide a brief rundown of the text in within 3 sentences?

my boyfriend of nearly 2 years who i was engaged to for 9 months suddenly came out with he's having lots of stress with us being together, his uni work and general stress... 

He turned round and told me on christmas eve that he wanted to break up with me, go away for a couple of weeks and have sex with random strangers... 

I was his first partner and his first sexual partner so i understand he never had any other sexual relations but i dont want him to leave me never mind go having sex with other people! 

He was 18 and i was 17 when we started going out, he is now 20 nearly 21 and i have just turned 19 in august... 

Please help me as i do not know what to do to help him, or myself as i know i cannot live without him.
<bot>: bf of nearly 2 years has left me because of stress and wants to go away and have sex with some strangers... Help me to help him and myself :'( please !