Low Sex Drive

It has been 5 weeks since my partner and I have had sex. During 3 of those 5 weeks his dad was in and out of the hospital and his grandpa passed away. I was 100% understanding and have helped out in any way I can whether it’s helping take care of his dad or visiting with his grandma to be sure she has everything she needs. Just like men, women have sexual needs. I am an extremely sexual person. I like it 3-5 times a week, but he is the total opposite. In his last 3-year-long relationship his girlfriend never wanted to have sex, so now he is in a routine of not having it. We’ve been together for 7 months and have maybe had sex about 15-20 times. He hasn’t been in the mood since the last time we’ve had sex and he swears it has nothing to do with me. I don’t exactly know how to deal with this whole situation because sex is an important factor in any relationship. He says he will go get his testosterone levels checked, but I don’t think that is the issue because throughout our whole relationship he’s been this way. Help!!