75% of my paycheck is mortgage+utilities. What to do?

Sorry for the long post, but all the info is important in making the right decision. 3 bed 3 bath house was bought less than a year for 1 Million in bay area (east bay). It was supposed to be a double income household but now fiancee is moving out as we broke up. The mortgage and title is under my name. I put 10% down and closed the mortgage at 4.375% 7/1ARM. The plan was that he contributes another %10 in less than a year and we refinance for a much better rate, but this isn't happening. My base salary is 183k, and after 401k, hsa, and all other taxes and fees, my paycheck is around $8000/mo. With this I can barely save anything from regular paychecks. Mortgage+utilities+property tax+ home insurance is around $6000/mo. Here's a breakdown: -$1200 equity -$3250 interest -$1150 tax -$400 all utilities+gardener+home insurance - I get around $1100/mo or more back for tax return from mortgage interest I'm paying. I started my tech career only 3 years ago, and I don't have a big net worth, so it's hard to put down another %10 down to refinance. I need to sell my vested Microsoft RSUs which are growing, and still I don't have enough, but also not so far from it. However, I don't know if it's financially a good idea to put all my net worth in this house. I talked with selling agents in the area and they say market is hot right now, I see similar houses go around $1,050,000. They charge %5. Agents say I can sell for at least that amount, since there is very low inventory of nice houses in the area. The house is really nice and well maintained. House is located in an east bay area with good schools and it has been growing well. Given all these, what do you think I should do? 1) save for refinancing 2) sell 3) stay still and try to get a roommate. One room goes for $1200. I'm not sure if I can handle more than one tenant. Even one is a hassle. Some details: I bought so much furniture for about 15k. Selling those would have a significant loss, and it's sooo much work. I've been through so much lately, and selling the house, selling furniture, and finding a new apartment sounds like a lot of work. If I sell the house, I won't buy for some time and I have to rent a 1 bedroom around $2500-$3000. Renting out is not an option since after agent fees it will be about $3200 based on their estimate, so I'm $2400 short and still need to rent a place for myself. As a newly single, living in the suburbs, where the house is, is not desirable, but I want to do what is financially best. TC 320k