Is he still interested and shall I contact him?

I (38) met a guy (45) via an online dating app and we had some very good conversations before he asked me out for our first date about a month ago on a Friday night. It went really well and he initiated the 2nd date the day after, and we met up again the Friday after ( was supposed to be sooner but somethings came up). The 2nd date went even better, and he stayed over at mine but we did not have sex as I told him I wanted to wait for abit and he respected that. Since then we have been texting consistently pretty much on an almost daily basis with him initiating ( except for the first 3 days after the 2nd date and I went into panic mode and decided to text him first), with very long entertaining messages. The physical attraction is definitely there, not to brag but we are both considered generally attractive/ above average lookswise. He has consistently complimented me throughout our dates and after on how beautiful and sexy he thinks I am etc. We are also both single parents with busy lives, he has 2 kids who live half of the week with him, and I have 1 child who’s full time with me. We also could talk and laugh easily about basically anything like our pasts and have lots of in jokes so the mental/ emotional connection appears to be there. We didn’t have a subsequent 3rd date prior to me going on holidays as things came up like kids/ illness but he did keep on saying how much he loved my company and wanted to see me again. About 2 weeks ago I went for a short 6 day trip to Europe for a wedding. The texting and communication was really good prior to my trip and he kept on talking about the next few months and how he can’t wait to do this and that with me. He also told me to send photos on my holidays. Our last texts were over a week ago, I received his last text just as I arrived in Europe and gave it 1.5 days to reply. Then towards the end of my trip a week ago,I sent him pics of my holiday/myself. Since then total radio silence from him. Not even a comment on my pics I have no idea what’s going on and stressing out majorly! I am one of those girls who prefers a guy to initiate contact/dates and take the lead although on rare occasions I do initiate contact but never dates. I’m not sure if he’s the kind who likes girl to initiate as he said on our first date why didn’t I mention wanting to meet up. 1) Do you think I should text him to let him know I’m back? He knows I’m only away for a week so he knows well that I should be back by now . Like I think that if he was truly interested he would have replied my texts and also texted me to ask how’s my trip. 2) Is he still interested or trying to ghost me/ found someone else?.....I have checked the dating app where we met and he hasn’t gone online at all the last few days. We usually chat through iMessage and from looking at his WhatsApp he normally only goes online once a day. I know that if a guy is truly interested he will reach out but now I’m thinking he’s suddenly lost interest while i was away. I really do like this guy a lot as he’s the best guy I’ve met in a long time and would like to make things work

Thanks Susie!!! Yay for being a go getter and putting things into perspective. I texted him a very casual message about an hour ago just to say I’m back and how’s things. no reply... anyway guess all this will just show his intentions