Ok im having boy trouble:(!!!!!!!?

ok so I got with a boy who is a squarebear -Shy and afraid to do relationship stuff yhu nu????- but im his frist girlfriend and I have another boy who likes me n I like him but im dont want to hurt the one im withs fillings cause u no im his first and i want to let him down gently that i want to break up. and yhu no im not the type to cheat and yhu nu :Pbut yeaaa I NEED HELPD:<