My Best friends Husband is wrecking our relationship!?

I have been friends with my best friend (we are both female) for 15 years. We are very close and have never really fought. The only problem in our relationship is she married a jealous manipulator who hates me. they have been dating/married for the past 9 years. Since she meet him our friendship has been torn apart several times. Not because of fighting just because he sabotages everything. When they started dating she was no longer able to spend any time with me or other friends.. One time we went to Lake Tahoe for the weekend and he was so jealous he showed up and would not leave. He even demanded we sleep with our bedroom door open and he slept in the hallway with his head in our room so he could "monitor" us!!!! If he felt like she was going to see me he would stalk her in apartment/school parking lot to catch her. Every time my best friend and I would hang out he would show up and start a fight with her to ruin our time together. About 10 years ago I moved across california about 9 hours away. Our relationship has been mostly by phone. I couldn't even go to her wedding because I knew her husband would make a drama out of it and ruin her wedding. I think she only had one acquaintance in her wedding. She came down to visit me a few years ago with her two small children and her husband called day and night, calling her names and pretending he was in so-cal and was stalking her,starting fights, and guilt tripping her. He ruined her entire trip! A few months ago she tried to plan a mini vacation to come see me and her husband started a huge fight and said no. I have not seen my best friend in 5 years and Im sick of it! They had marriage problems about a month ago and she was pondering divorce. They have since made up but he blamed all their problems on me to get her to cut me out. I am moving next week, and the town she lives in is on the way. i am planing to stop and get a motel room. She is trying to convince me to stay at her house, saying its her husbands idea and hes changed. I know he only wants me there so he can control what we do and talk about and force her to spend time with him. Since I have kept my plans for a hotel room she has been a little cold to me.. She keeps telling me her husband has changed (since last month). I feel she has a lot of nerve pretending like i don't have a reason to get a hotel room!....Just another example of how her husbands manipulation and control have caused problems!