Sex life in marriage

Hey I’m writying this to do not get judge or anything like that

I been with my husband 4 years now in July 15

We been together as married since 14 of January in 2020 our sex life was awesome and doing it a lot for some reason In a couple of months I have notice that we been having sex less and less like last month we did it 5 time less than 10-5 minutes

We do have his brother living with us in our apartment

Last night I got so upset and I ask him why he hasn’t have sex with me why our sex life is less than before and he only said he doesn’t not I keep saying are you tired of me ?? And so many things I went ahead with and walk into our apartment and I went ahead and took a shower well was about to and my husband walks in and we both get into the shower and we both clean each other and we had sex and he actually pleasure me and gave me a massage me and had a good time

When we were done I ask him why did we had sex was it to shut me out and he said no he’s tired of doing it on the same bed same things and since we have someone living with us on our couch is not like before that we used to do it everywhere

Any tips for me ?