I dont no what to do...?

i really like this guy hes 2 years older than me thou and haz a gf he told me he likes me i have had a crush on him 4 3 months i cant get over him cuz he said he likes me and he still likes me now but his gf is a model a year older than him and nice and funny ( i have met her) i have been trying to get over him ever since he started to date her but i just cant...