I've got a special birthday ending in 0 in August and I booked a beautiful villa in Portugal for me,my 9yr old DS and my parents months ago.Sadly my DM has become too ill to travel. So it's just my DS and me. My DS is autistic,has behavioural problems and I find him hard to cope with on my own ( he has one to one support in all areas of his life) But I still want to go on holiday with him and I don't want to cancel. My ex partner and father of my DS has offered to come with us. We have a volatile relationship after I ended our relationship 2 years ago.He wants to get back together but I don't and this leads to rows on a regular basis.He said he would suspend hostilities for the duration of the holiday and he should come because our son would like to go on holiday with both of us.He would also help me with childcare so that I would get a break from looking after my son 24/7.He doesnt expect to contribute to the holiday costs as he said he would be doing me a favour,stepping in in place of my parents. So AIBU to expect him to pay a share of the costs? He will pay for his own flight but I'm paying for everything else including flights and car hire, a total of £4,000 not including spending money. Also,I am concerned that we will argue on holiday and end up with an awful atmosphere which will totally spoil everything.But if I go alone with my son, will the stress of coping with him singlehanded mar the holiday?