Guy problem! it is serious. genuine answers needed. no abuses plz.?

i ws seeing dis guy 4 about 7 mnths n den v broke up bcz he wantd 2. he ws nyc 2 me wen he wanted 2 but he really dint bother about my needs n all n ws pretty uncultured. he always bossed around n all but still sum tym spend wid him ws really nice.v hd gt a bit physical(although nt ). after r brk up my friend(guy) askd me out. i always kinda liked him n he's a gem @ heart. he's pretty commited sorts although he's very shy.i really like him.few days bak my ex called @ nyt n dat day itself i ws hvin feelings 4 him. he sed he wntd 2 get bak wimme n i sed ok. l8er on i realyzd ma mistake. but cudn say dt l8er. he noes i ws seein sum1 i lied 2 ma ex i wud brk up wid ma bf but i cnt hurt him. cz h'es bin dere in ma need n ma ex wsnt. tz nt ma bfs fault y shud i hurt him. on d oder hand cnt brk up wid ma ex(hu's bak wimme @ d tym) cz else this is my lst yr @ high skul n he wud ruin it. evry1 wil go agenst me n no1 wud wnt dat. wat shud i do?