Do honest, yet non-hurtful, relationships exist or am i expecting too much?

i just feel that i always ask these stupid questions and get stupid answers. it's not like he's cheated on me, but i am 50lbs. more than i was when we met and sometimes i feel he stays for the kids because he seems to eyeball every girl he walks by. should i be happy that even though every girl that walks through his path has his eyes for a moment, but i will always have his heart...i think. i just can't help but think he is looking for better. yes, i'm emotional and i know i'll get rude answers insinuating that i'm overly dramatic, irrational, immature, jealous, too fat for him, he's wanting to leave, that i need to shut up...but thank you to those who have a heart and good insight and wisdom.