We had a big fight...need your comments or ideas pls...?

i had a big fight with my husband..i was angry bec he's not texting or calling me anymore when im at work..i missed it..then it started the fight..he said i dont have time to make love with him..its quite true bec our schedule is conflict. i go home around 1am he is asleep at that time..im tired too bec i wake up at 6am to prepare breakfast and check my 4 kids..also, my youngest always gets sick..i was hoping he understands why i cant make it..on my rest day, at least we do it once a week..but not like before...it hurts to know that he doesnt appreciate my effort.. he even warns me he might do it with another girl, bec he needs it.. i understand that but my point is as of now why cant he adjust the situation..is it really bec he needs it? what should i do ?. i need a friendly advise...pls....