Should I admit I like him?

I recently got texting A guy I now that has fancied me for at least 3 years I honestly was not that into him but in the last few months I started enjoying the fact I know he's always checking me out and picked up the courage to add him on social media and we were texting as normal but things turned into sexting , he knows I live with childrens dad but he nows I'm not happy and it's not gonna work out but we agree to keep everything secret to not hurt feelings as he also stays with his children mother and I'm 100% sure they are not together as she is not interested in him no more. At first I just wanted a bit of fun and we haven't actually met up yet alone , but I'm starting to have feelings and I feel everything building up inside me , we only ever flirt we chat as normal then everything turns sexual I now this is lust but how can I tell him I have feelings without embarrassing myself?

Should I admit I like him?
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