My boyfriend a model?

well we have been going out 3years and love each other. money is a bit tight at the moment so he decided he might start modelling, there is a local agency who wants him and everyone say he should do it! i was on there website and all the models are fab!! then there is me, i am slightly overweight and only 5.5. so you guess you could say im feeling insecure and feel selfish. he is so hot and would be amazing and i no he would never cheat but you cant blame him if he looked, there hot like!! he keeps telling me not to worry that im the one for him but i still cant help feeling jealous!! i feel bad 2!