Sleeping with the father of my kids?

Me and my ex broke up cause it felt like we were constantly arguing and he wasn’t making much effort for the family wanted to spend most his time with mates , we have been seperated for about 3 months he left when our baby was 2 weeks old , the last couple of days his been suggesting things towards sleeping together , he knows I still care and love him but he says there is no hope for us but when we hangout with our kids together all our issues seem to disappear I really want to work things out am I stupid for holding on to hope that he might change his mind

Sleeping with the father of my kids?
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