Wat guy would be best? so confused?

so i have been wit this guy for about a year n a half now n we love each other wit all out hearts but hes gets mad about everything i do n always thinks i am talkin to other people which i kno trust is a big thing to have in a realtionship n im always helpin him out wit everything but he just acts like he dont care like he always wants attention n i cant show him the attention he wants 24/7 n i can never talk to my friends ne more cuz he thinks another guy is goin to be there tryin to get wit me...n now an old guy friend i have just messaged me n said how he would love to talk to me again n he would give me the world n treat me so much better then the dude im wit now but the thing is that guy has 2 kids n i kno he is a really sweet guy but im so confused n i dont kno wat to do...n im a really nice girl n im so confused. ne help?