My freinds solution to a bad child is trying make out with them

I have this opposite sex freind. I suspected they were into me but we never really talked about it. Recently our third freind left since they got a new appartment and completly dropped both of us. My freinds solution to that was being increasingly touchy. Which I find odd and frankly obnoxious. I figured perhaps this is there odd way of showing affection and they are just a fucking wierdo. However they been getting worse and i usually push them away and ask them leave and yesterday they almost wouldnt till I like throw there dog out the house and indirectly asked them to leave. What do I do about this? Some other context I been abused most of my life and at this piont am extremly desensitized and just find other people annoying. They also trying get a job where I work and convince boss move into student housing even though they could literally work at any place.