blow job question

ok so ive been with my hubby for 6 and a half years now we have 2 kids ages 2 and 3. i understand that sex is going to slow down after kids but that wasnt the case with us until about a year ago. all he wants now is blow jobs. ok i get the fact that i gained weight after having my kids. ive lost 50 lbs and still have about 40 more to go. i never had a problem giving him blow jobs. but when it became an issue where he would go to sleep if i didnt give him a blow job and the next day he wouldnt go to work and make my whole day miserable until i cave in and gave him a bj. after i would give him a bj he would go to sleep. he never returns the favor in any way. the last time we had sex was on valentines day only because i iniciated it if i dont iniciate it we wont have sex for months. he wants a blow job every night and wont even give me a massage to relive the pain i get in my neck. ive talked to him about how i feel about this situation, but it seems like he doesnt even care how i feel about it. as of lately i havent been sleepin in our bedroom i just go and sleep on the couch. he has been getting mad because i do this but he wont give me a brak. im a pretty girl im chubby i know that but im confidant and a good person. i wouldnt mind giving him blow jobs once or twice a week but i would like some sort of sex too. i hate to spank the monkey tough i do do it. i feel like im not getting met half way. he has latly been insunuating that im cheating on him wich is stupid, because im losing weight and looking better in my clothes. i dont know if this means he is cheating on me or not. im confused i dont know if he just isnt sexualy attracted to me or if maybe he is gay because all he wants is blow jobs, he cant even keep it hard if i try to have sex with him with out me putting it in my mouth. please some one help me. Tweet